Return on Investment (ROI) Calculator
Calculate investment performance and annualized return
Use date range or fixed investment length to estimate ROI and annual return metrics.Input details
Result
Invested/Returned vs Profit/Loss
ROI Calculator: The Complete Guide to Return on Investment, Calculations, and Smarter Investing
Whether you're evaluating a stock purchase, a piece of real estate, a new marketing campaign, or a business expansion, one question almost always comes up first: "What did I get back for what I put in?" That question, distilled into a single percentage, is the essence of Return on Investment (ROI) — one of the most widely used, widely understood, and widely misused metrics in finance and business.
ROI's appeal lies in its simplicity: a single number that lets you compare wildly different opportunities — a savings account, a stock portfolio, a piece of equipment, an advertising campaign — on a common scale. But that same simplicity is also its biggest limitation, since a bare ROI percentage says nothing about how long it took to achieve, how risky it was, or what else happened along the way.
This guide covers everything you need to know about ROI: what it is, how it's calculated with worked examples, its key features, common difficulties in using it correctly, how to annualize it for fair comparisons across different time periods, how it factors into financial decisions, how it compares to the related metric ROE, its advantages and disadvantages, practical tips for improving your own investment returns, and why it matters so much to businesses. Throughout, you'll see how an ROI Calculator turns these concepts into a quick, repeatable way to evaluate any investment or decision.
Table of Contents
- What Is Return on Investment (ROI)?
- What Is ROI and How It Works — Calculations With Example
- Key Features of ROI
- Difficulty in Usage
- Annualized ROI
- ROI and Financial Decisions
- ROE vs. ROI
- Advantages and Disadvantages of ROI
- Investing Recommendations for Better ROI
- Why Is ROI Important for Businesses?
- ROI and Related Metrics: A Quick Reference
- Frequently Asked Questions (FAQ)
What Is Return on Investment (ROI)?
Return on Investment (ROI) is a financial metric that measures the profitability of an investment relative to its cost, expressed as a percentage. In its simplest form, ROI answers the question: "For every dollar I put in, how much did I get back — above and beyond what I started with?"
ROI is used across an enormous range of contexts: individual investors use it to evaluate stocks, bonds, real estate, and other assets; businesses use it to assess the profitability of projects, equipment purchases, marketing campaigns, and acquisitions; and everyday consumers even use ROI-style thinking informally when deciding whether a purchase — like an energy-efficient appliance — will "pay for itself" over time.
The core appeal of ROI is its universality. Because it's expressed as a percentage rather than a dollar amount, ROI allows you to compare the performance of investments of completely different sizes and types on the same scale — a $1,000 investment that returns 20% and a $100,000 investment that returns 20% have, in ROI terms, performed identically, even though the dollar amounts involved are vastly different. An ROI Calculator takes your investment cost and the return (or gain) you received, and instantly produces this percentage — along with, often, additional context like the net profit and annualized rate, which we'll explore later in this guide.
What Is ROI and How It Works — Calculations With Example
At its core, ROI is calculated using a simple formula that compares the net gain from an investment to its original cost.
The Basic ROI Formula
Where:
Net Profit = Final Value of Investment - Cost of Investment
Alternatively, often written as:
ROI = [(Final Value - Initial Cost) / Initial Cost] × 100
Step-by-Step Worked Example
Example: Stock Investment
You purchase shares of a company for $5,000. After two years, you sell them for $6,500.
Step 1: Calculate the net profit.
Net Profit = $6,500 - $5,000 = $1,500
Step 2: Apply the ROI formula.
ROI = ($1,500 / $5,000) × 100
ROI = 0.30 × 100
ROI = 30%
Your investment generated a 30% return over the two-year holding period — meaning for every dollar invested, you gained 30 cents in profit, on top of getting your original dollar back.
Including Additional Costs
A more complete ROI calculation often needs to account for additional costs associated with the investment — transaction fees, maintenance costs, taxes, or other expenses — to reflect the true cost and return.
Example: Real Estate Investment With Additional Costs
Purchase price of a rental property: $200,000
Renovation costs: $20,000
Total investment cost = $200,000 + $20,000 = $220,000
After 5 years, the property is sold for $290,000. Selling costs (agent fees, etc.) total $15,000.
Net sale proceeds = $290,000 - $15,000 = $275,000
Net Profit = $275,000 - $220,000 = $55,000
ROI = ($55,000 / $220,000) × 100
ROI ≈ 25%
Note: This simplified example doesn't include rental income received during the holding period or ongoing expenses like property taxes and maintenance — a more complete ROI calculation for an income-producing property would incorporate these cash flows as well, which we'll touch on later in this guide.
ROI for Marketing and Business Decisions
The same basic formula applies to business contexts, just with different inputs.
Example: Marketing Campaign ROI
A company spends $10,000 on a digital marketing campaign. The campaign generates $35,000 in additional revenue directly attributable to it, with a cost of goods sold of 60% (meaning $21,000 of that revenue goes to production costs, leaving $14,000 in gross profit from the campaign).
Net Profit from Campaign = $14,000 - $10,000 (campaign cost) = $4,000
ROI = ($4,000 / $10,000) × 100 = 40%
This 40% ROI tells the business that for every dollar spent on this campaign, they generated 40 cents in profit after accounting for both the campaign cost and the cost of producing the goods sold.
Key Features of ROI
1. Expressed as a Percentage
ROI's output is a percentage, which is what makes it so easy to communicate and compare — "30% ROI" is immediately meaningful regardless of the underlying dollar amounts involved.
2. Universally Applicable
ROI can be calculated for virtually any investment or expenditure where there's a clear cost and a clear return — stocks, bonds, real estate, business projects, equipment, marketing, education, and more.
3. Simple to Calculate
Unlike more complex metrics (such as Internal Rate of Return, which requires iterative calculation), basic ROI requires only two numbers: the cost and the return — making it accessible without specialized financial tools.
4. Time-Agnostic by Default
The basic ROI formula doesn't account for how long the investment took to generate that return — a feature that's also one of its biggest limitations, addressed in the "Annualized ROI" section below.
5. Doesn't Account for Risk
ROI measures the outcome that occurred, but says nothing about the probability of that outcome, or how much variability/risk was involved in achieving it.
6. Can Be Negative
If an investment loses value, ROI is negative — for example, an investment that drops from $1,000 to $800 has an ROI of -20%, clearly communicating a loss.
7. Flexible Definition of "Return" and "Cost"
Depending on context, "return" might include capital gains only, or capital gains plus income (dividends, rent, interest); and "cost" might include just the purchase price, or the purchase price plus all associated fees and expenses. Being clear about what's included is essential for meaningful ROI figures — and for comparing ROI figures from different sources.
| Feature | Description |
|---|---|
| Output format | Percentage |
| Inputs required | Cost of investment, final value/return |
| Time consideration | None, by default (see Annualized ROI) |
| Risk consideration | None — purely a measure of realized outcome |
| Applicability | Virtually universal across investment and business contexts |
Difficulty in Usage
Despite its apparent simplicity, ROI is frequently misused or misunderstood in practice. Here are the most common difficulties.
1. Ignoring the Time Factor
A 30% ROI over 1 year is a vastly different result from a 30% ROI over 10 years — yet the basic formula produces the same number for both. Without annualizing (covered in the next section), comparing ROI figures across investments held for different durations can be highly misleading.
2. Inconsistent Definitions of "Cost" and "Return"
As mentioned, whether fees, taxes, ongoing expenses, or additional income (like dividends or rent) are included in the calculation can dramatically change the resulting ROI. Two people calculating "ROI" on the same investment, using different inclusion rules, can arrive at meaningfully different percentages — both technically correct under their own definitions, but not comparable to each other.
3. Not Accounting for Cash Flows Over Time
For investments involving multiple cash inflows and outflows at different times (like a rental property with monthly rental income and periodic maintenance costs, or a business project with phased investment), a single ROI figure calculated from just the initial cost and final value can obscure important details about when money was spent and received — details that more sophisticated metrics like IRR (Internal Rate of Return) or NPV (Net Present Value) are better equipped to capture.
4. Survivorship and Selection Bias in Reported ROI
When evaluating investment opportunities based on advertised or historical ROI figures, be cautious of selection bias — figures based only on successful outcomes, or from a favorable historical period, may not represent what a similar investment would realistically achieve going forward.
5. Ignoring Risk-Adjusted Comparisons
A 15% ROI from a highly volatile, speculative investment and a 15% ROI from a stable, low-risk investment represent very different value propositions — ROI alone doesn't capture this difference, which is why risk-adjusted metrics (like the Sharpe ratio in investment contexts) exist as complements to ROI.
6. Currency and Inflation Effects
For long-term investments, a nominal ROI figure doesn't account for inflation — a 50% ROI over 10 years might represent very little real (inflation-adjusted) gain if inflation was also significant over that period.
Always Clarify What's Included Before Comparing ROI Figures
Before comparing ROI figures from different sources — whether two investment opportunities, two business projects, or your own calculations versus someone else's — confirm that both figures use the same definitions of cost and return, cover comparable time periods (or are both annualized), and ideally account for similar risk profiles. Without this, "ROI" comparisons can be comparing fundamentally different things despite looking like the same metric.
Annualized ROI
To address the time-factor problem described above, Annualized ROI (sometimes called Compound Annual Growth Rate, or CAGR, when applied to investment returns) converts a total ROI figure into an equivalent yearly rate — making it possible to fairly compare investments held for different lengths of time.
The Annualized ROI Formula
Where:
ROI = Total ROI as a decimal (e.g., 30% = 0.30)
n = Number of years the investment was held
Worked Example: Annualizing a Multi-Year ROI
Using the earlier stock example: $5,000 grew to $6,500 over 2 years, for a total ROI of 30% (0.30).
Annualized ROI = [(1 + 0.30)^(1/2) - 1] × 100
Annualized ROI = [(1.30)^0.5 - 1] × 100
Annualized ROI = [1.1402 - 1] × 100
Annualized ROI ≈ 14.02% per year
So while the total ROI over 2 years was 30%, the equivalent annualized rate — the rate that, if compounded each year for 2 years, would produce the same 30% total — is approximately 14.02%.
Why Annualizing Matters: A Comparison
Example: Two Investments, Same Total ROI, Different Time Periods
Investment A: 30% total ROI over 2 years → Annualized ROI ≈ 14.02%
Investment B: 30% total ROI over 5 years → Annualized ROI = [(1.30)^(1/5) - 1] × 100 ≈ 5.39%
Both investments show the same 30% total ROI, but Investment A achieved that return more than twice as fast — its annualized rate of ~14% is nearly three times higher than Investment B's ~5.4%. Without annualizing, these two very different outcomes would look identical.
Annualized ROI vs. CAGR
In investment contexts, "Annualized ROI" and "CAGR" (Compound Annual Growth Rate) are often used interchangeably and calculated using the same formula — both represent the smoothed, compounded annual rate that would produce the observed total return over the given period. The terms are most commonly distinguished by context: CAGR is more often used for tracking the growth of a specific value (like a stock price or portfolio value) over time, while "Annualized ROI" is more often used in the broader sense of evaluating any investment's performance per year.
| Total ROI | Holding Period | Annualized ROI (Approx.) |
|---|---|---|
| 10% | 1 year | 10.00% |
| 10% | 2 years | 4.88% |
| 50% | 3 years | 14.47% |
| 50% | 10 years | 4.14% |
| 100% | 5 years | 14.87% |
| 100% | 10 years | 7.18% |
ROI and Financial Decisions
ROI plays a central role in many types of financial decision-making, both for individuals and organizations.
Comparing Investment Alternatives
When choosing between multiple investment options — different stocks, asset classes, or business projects — ROI (ideally annualized) provides a common basis for comparison, helping decision-makers rank opportunities by expected or historical efficiency of capital use.
Capital Budgeting and Project Approval
Businesses commonly use projected ROI as one of several criteria for deciding whether to approve a project, purchase equipment, or invest in new initiatives — comparing the expected ROI of a proposed project against a minimum acceptable threshold (often called a "hurdle rate") before committing resources.
Evaluating Past Performance
ROI is also used retrospectively — to evaluate how well a past investment, project, or campaign performed, informing future decisions about whether to repeat, expand, or discontinue similar initiatives.
Setting Performance Targets
Organizations often set ROI targets for different business units, marketing channels, or investment portfolios as part of performance management — using ROI as a key performance indicator (KPI) that ties resource allocation decisions to measurable outcomes.
Personal Financial Planning
Individuals use ROI thinking when deciding between paying down debt versus investing, choosing between different savings vehicles, or evaluating whether a major purchase (like education or a home renovation) is likely to "pay for itself" through future savings or income.
Example: Using ROI in a Decision
A small business owner is considering two options for $20,000: (A) investing in new equipment expected to generate $26,000 in additional value over 2 years, or (B) investing in a marketing campaign expected to generate $30,000 in additional revenue (with $8,000 in associated production costs) over 1 year.
Option A ROI: ($26,000 - $20,000) / $20,000 × 100 = 30% over 2 years → Annualized ≈ 14.0%
Option B ROI: ($30,000 - $8,000 - $20,000) / $20,000 × 100 = 10% over 1 year → Annualized = 10.0%
Despite Option B's total ROI (10%) appearing lower than Option A's total ROI (30%), when annualized, Option A's ~14.0% still outperforms Option B's 10.0% per year — but the gap is much narrower than the raw totals suggested, illustrating why annualizing matters even for relatively short-term business decisions.
ROE vs. ROI
Return on Equity (ROE) and Return on Investment (ROI) are related but distinct metrics, and the difference matters particularly in business and corporate finance contexts.
What ROE Measures
Return on Equity (ROE) measures how efficiently a company generates profit from the equity (ownership capital) that shareholders have invested in it. It's calculated as:
Key Differences
| Aspect | ROI | ROE |
|---|---|---|
| What it measures | Return relative to the total cost of a specific investment | Return relative to shareholders' equity in a company |
| Scope | Can apply to any investment, project, or asset | Specifically a corporate finance metric for companies |
| Denominator | Cost of investment (total capital deployed) | Shareholders' equity only (excludes debt financing) |
| Affected by leverage (debt)? | Depends on how "cost" is defined | Yes — using debt to finance operations can increase ROE without changing the underlying business performance |
| Typical users | Individual investors, business managers, marketers | Equity investors, financial analysts evaluating companies |
Why the Distinction Matters: The Leverage Effect
Example: How Debt Affects ROE But Not ROI in the Same Way
Consider a company that needs $1,000,000 to fund a project that generates $150,000 in annual net income.
Scenario A — Funded entirely with equity:
Shareholders' Equity = $1,000,000
ROE = $150,000 / $1,000,000 × 100 = 15%
ROI (on total capital) = $150,000 / $1,000,000 × 100 = 15%
Scenario B — Funded with $600,000 equity and $400,000 debt (at 5% interest):
Interest expense = $400,000 × 5% = $20,000
Net Income (after interest) = $150,000 - $20,000 = $130,000
ROE = $130,000 / $600,000 × 100 ≈ 21.7%
ROI (on total capital deployed, $1,000,000) = $130,000 / $1,000,000 × 100 = 13%
In Scenario B, ROE appears higher (21.7% vs. 15%) due to leverage — the same underlying project now shows a better return to equity holders specifically — while ROI on the total capital deployed is actually slightly lower (13% vs. 15%) once the cost of debt is factored in. This illustrates why ROE alone can sometimes overstate how well a business is performing on an operational basis, since it doesn't reflect the total capital (including debt) used to generate the return.
When to Use Each
- Use ROI when evaluating a specific investment, project, or expenditure on its own merits, regardless of how it's financed.
- Use ROE when evaluating how effectively a company is using shareholders' capital specifically — particularly relevant for equity investors comparing companies, since it reflects the return available to them as owners.
- Use both together when analyzing a company, since comparing ROE to ROI (or to Return on Assets, ROA) can reveal how much of a company's equity returns are driven by leverage versus genuine operational performance.
Advantages and Disadvantages of ROI
Advantages
| Advantage | Why It Matters |
|---|---|
| Simple and intuitive | Easy to calculate and explain, even to non-financial audiences |
| Universally comparable | Percentage format allows comparison across vastly different investment sizes and types |
| Widely understood | A common "language" across industries and contexts, facilitating communication |
| Useful for quick screening | Helps quickly filter out clearly unattractive options before deeper analysis |
| Flexible | Can be adapted to virtually any cost/return scenario with appropriate definitions |
Disadvantages
| Disadvantage | Why It Matters |
|---|---|
| Ignores time (without annualizing) | Can make short-term and long-term investments look equally attractive when they're not |
| Doesn't account for risk | A high ROI from a risky venture isn't directly comparable to the same ROI from a safe one |
| Inconsistent definitions | "Cost" and "return" can be defined differently, undermining comparability |
| Ignores cash flow timing | Doesn't capture when money was invested or received within multi-period scenarios |
| Can be manipulated | Selective inclusion/exclusion of costs can make ROI figures look more favorable than reality |
| Doesn't account for inflation | Nominal ROI over long periods can overstate real (inflation-adjusted) gains |
Balancing ROI With Other Metrics
Given these limitations, ROI is best used as a starting point or quick-screening tool rather than the sole basis for major decisions. For more complex or high-stakes evaluations, ROI is often used alongside metrics like annualized ROI/CAGR (for time-adjusted comparisons), Net Present Value (NPV) and Internal Rate of Return (IRR) (for multi-period cash flow analysis), and risk-adjusted return measures (for comparing investments of different risk levels).
Investing Recommendations for Better ROI
While no strategy guarantees a specific ROI, certain principles consistently help investors and businesses improve their realized returns over time.
1. Minimize Unnecessary Costs
Since ROI is calculated relative to cost, reducing fees, commissions, taxes (where legally possible), and other frictional costs directly improves ROI for the same gross return — making cost minimization one of the most reliable ways to improve net ROI.
2. Diversify to Manage Risk-Adjusted Returns
While diversification doesn't directly increase ROI on any single investment, it can improve the consistency and risk-adjusted quality of overall portfolio returns, reducing the chance of a single poor-performing investment dragging down the entire picture.
3. Hold Investments Long Enough for Compounding to Work
As shown in the annualized ROI examples, longer holding periods allow even modest annual returns to compound into substantial total ROI over time — patience is often a more powerful lever than chasing higher short-term returns.
4. Reinvest Returns Where Appropriate
For investments that generate periodic income (dividends, rental income, interest), reinvesting that income — rather than spending it — allows the compounding effect to apply to a growing base, improving long-term ROI.
5. Match Investment Choices to Your Time Horizon
Investments with higher potential ROI often come with higher volatility, which can be appropriate for long time horizons but risky for funds needed in the near term. Aligning the risk profile of an investment with how soon you'll need the funds helps avoid being forced to sell at an unfavorable time.
6. For Businesses: Focus on High-ROI Activities
Regularly evaluate the ROI of different business activities (marketing channels, product lines, projects) and reallocate resources toward those with consistently higher ROI — while being mindful of the "difficulty in usage" issues discussed earlier, ensuring comparisons are apples-to-apples.
7. Avoid Chasing Past ROI Without Understanding Why It Occurred
Historical ROI — especially exceptionally high figures — should be examined for the underlying reasons behind it (favorable market conditions, one-time events, survivorship bias in reported data) rather than assumed to be repeatable.
8. Use an ROI Calculator to Model Scenarios Before Committing
Before committing capital, use an ROI Calculator to model different scenarios — best case, expected case, and worst case — and to calculate the annualized ROI needed to meet your goals, helping set realistic expectations and informed decisions.
Why Is ROI Important for Businesses?
1. Resource Allocation
Businesses have finite capital, time, and personnel. ROI helps prioritize where these limited resources should go by quantifying the expected return relative to the investment required — directing resources toward initiatives most likely to generate value.
2. Accountability and Performance Measurement
ROI provides a concrete, quantifiable way to hold teams, projects, and initiatives accountable for the value they generate relative to what they cost — supporting performance reviews, budget justifications, and strategic planning.
3. Justifying Investments to Stakeholders
When seeking approval for new projects, equipment, hires, or expansions, a clear ROI projection helps communicate the expected value to executives, boards, investors, or lenders in terms they can readily evaluate and compare against alternatives.
4. Identifying Underperforming Areas
Tracking ROI across different business units, products, or marketing channels over time helps identify areas that are underperforming relative to their cost — prompting reviews, adjustments, or discontinuation of low-ROI activities.
5. Supporting Pricing and Investment Strategy
Understanding the ROI of different production methods, suppliers, or technologies helps inform pricing strategy and capital investment decisions — ensuring the business remains competitive while maintaining healthy margins.
6. Benchmarking Against Industry Standards
Comparing a business's ROI on specific activities against industry benchmarks helps identify whether the business is performing competitively, and can highlight areas where operational improvements might yield outsized returns.
Example: ROI Driving a Business Decision
A company runs three marketing channels with the following ROI over the past year: Channel A (Social Media Ads) = 45%, Channel B (Email Marketing) = 120%, Channel C (Print Advertising) = 8%.
Based on these figures, the business might choose to reallocate budget away from Channel C (print) toward Channel B (email), which is showing a substantially higher ROI — while also investigating whether Channel C's poor performance is a temporary issue or a structural one. ROI doesn't make this decision automatically (other factors like brand reach, customer acquisition quality, and long-term value might matter too), but it provides the quantitative starting point for the conversation.
ROI and Related Metrics: A Quick Reference
ROI is part of a broader family of return-related metrics, each suited to slightly different purposes. Here's a quick reference for how they relate.
| Metric | What It Measures | Best Used For |
|---|---|---|
| ROI (Return on Investment) | Net profit relative to investment cost | General-purpose comparison of any investment or expenditure |
| Annualized ROI / CAGR | ROI expressed as an equivalent yearly rate | Comparing investments held for different time periods |
| ROE (Return on Equity) | Net income relative to shareholders' equity | Evaluating company performance from an equity investor's perspective |
| ROA (Return on Assets) | Net income relative to total assets | Evaluating how efficiently a company uses all its assets, regardless of financing |
| IRR (Internal Rate of Return) | The discount rate that makes the net present value of cash flows zero | Multi-period projects with cash flows at different times |
| NPV (Net Present Value) | The present value of future cash flows minus initial investment | Comparing the absolute dollar value created by different projects |
Each of these metrics offers a different lens, and sophisticated financial analysis often uses several together rather than relying on any single figure. For everyday use, however, ROI (and its annualized form) remains the most accessible starting point — and is exactly what a general-purpose ROI Calculator is designed to provide quickly and clearly.
Frequently Asked Questions (FAQ)
What is a good ROI?
"Good" depends heavily on the context — the type of investment, the time period, and the risk involved. For long-term diversified stock market investments, average annual returns have historically been in the range of roughly 7-10% (before inflation) over long periods, though this varies significantly by market and timeframe. For business projects, a "good" ROI is often defined relative to the company's cost of capital or a specific hurdle rate set by management. There's no single universal benchmark — context is essential.
How do I calculate ROI?
The basic formula is ROI = (Net Profit / Cost of Investment) × 100, where Net Profit = Final Value - Initial Cost. For example, if you invest $1,000 and it grows to $1,200, your net profit is $200, and your ROI is ($200 / $1,000) × 100 = 20%.
What's the difference between ROI and annualized ROI?
ROI shows the total return over the entire period an investment was held, regardless of how long that period was. Annualized ROI (or CAGR) converts that total return into an equivalent yearly rate, making it possible to fairly compare investments held for different lengths of time.
Can ROI be negative?
Yes. If an investment's final value is less than its initial cost, the net profit is negative, resulting in a negative ROI — clearly indicating a loss. For example, an investment of $1,000 that falls to $850 has an ROI of -15%.
Is ROI the same as profit margin?
No, though they're related. Profit margin typically measures profit as a percentage of revenue (e.g., net profit margin = net income / revenue), while ROI measures profit as a percentage of the cost or capital invested to generate that profit. The two can move independently — a business can have a high profit margin but a low ROI if it required a very large investment to achieve that margin.
Should I use ROI or ROE to evaluate a stock?
ROE is generally more relevant for evaluating a company's efficiency in generating returns for its shareholders, since it's based on shareholders' equity specifically. ROI is more useful for evaluating your own personal return on a specific stock purchase (based on what you paid and what it's worth now, plus any dividends). Many investors look at both — a company's ROE as part of fundamental analysis, and their own personal ROI to track their actual investment performance.
Does ROI account for taxes?
Not by default — the basic ROI formula doesn't include taxes unless you explicitly factor them into the "cost" or "net profit" figures. For a more accurate picture of your actual take-home return, especially for taxable investments, consider calculating an after-tax ROI by adjusting the net profit for any taxes owed on the gain.
How does inflation affect ROI?
The basic ROI formula produces a nominal figure that doesn't account for inflation. To understand the "real" return — the increase in actual purchasing power — you would need to adjust the ROI for the inflation rate over the same period. A 20% nominal ROI over a period with 15% cumulative inflation represents a much smaller real gain than the headline number suggests.
What's a hurdle rate, and how does it relate to ROI?
A hurdle rate is the minimum acceptable rate of return a business or investor requires before approving an investment or project — often based on the cost of capital plus a risk premium. Projected ROI (often annualized) is compared against the hurdle rate: projects with expected ROI below the hurdle rate are typically rejected, while those above it are considered for approval.
Can ROI be used for non-financial investments, like time or education?
Yes, informally. People often apply ROI-style thinking to decisions like pursuing further education (comparing the cost of tuition against the expected increase in future earnings) or time investments (comparing time spent on an activity against the value or benefit gained). While harder to quantify precisely than financial investments, the underlying logic — comparing what's given up to what's gained — remains the same.
What information do I need to use an ROI Calculator?
At minimum, you need the initial cost of the investment and its final value (or the net gain/return). For more complete results, also gather any additional costs (fees, taxes, maintenance) and any additional income received during the holding period (dividends, rent, interest), as well as the length of the holding period if you want an annualized figure.
Why might two people calculate different ROI figures for the same investment?
This usually comes down to different definitions of "cost" and "return" — one person might include fees, taxes, or additional income (like dividends) in their calculation while the other doesn't, or they might be using different time periods. Always clarify these inputs before comparing ROI figures from different sources.