BMR Calculator
Result
BMR Calculator Calculate your Basal Metabolic Rate (BMR) — the calories your body burns at complete rest — using the Mifflin-St Jeor equation. Enter your sex, age, weight, and height to see your daily resting calorie needs. — free online calculator.
Formula
- BMR Calculator calculates its result from Age, Weight, Height. It uses the formula Male: BMR = 10×weight + 6.25×height − 5×age + 5. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Age, Weight, Height. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: BMR
- Age: 10
- Weight: 3
- Height: 4
Using Age = 10, Weight = 3, Height = 4, the calculated result is 10.
Sample result: Calculating…
Frequently asked questions
What does the BMR calculate?
BMR Calculator Calculate your Basal Metabolic Rate (BMR) — the calories your body burns at complete rest — using the Mifflin-St Jeor equation. Enter your sex, age, weight, and height to see your daily resting calorie needs. — free online calculator.
Which values should I enter?
Enter Age, Weight, Height using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Male: BMR = 10×weight + 6.25×height − 5×age + 5.
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.