BMR (Basal Metabolic Rate) Calculator
Estimate resting energy needs and daily calorie targets
Choose your preferred formula and units to calculate BMR, activity-based calorie needs, BMI position, and normal weight range.Input details
Results
UnderweightCalculated BMR
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Formula: Mifflin-St JeorIdeal weight difference
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Compared to normal BMI range (18.5-24.9)Normal weight range for your height
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Daily calorie needs
| Activity Level | Estimated Needs |
|---|---|
| Sedentary | -- |
| Light activity | -- |
| Moderate activity | -- |
| Active | -- |
| Very active | -- |
BMI category scale
BMI: --
<18.518.5-24.925-29.930+
BMR guidelines
- BMR estimates energy burned at complete rest and is not your total daily expenditure.
- Use the activity table to estimate maintenance calories based on lifestyle intensity.
- Katch-McArdle is useful when body fat percentage is known and measured reliably.
- Use BMI range and weight difference as screening indicators, not a medical diagnosis.