Does this BMR Calculator save my inputs?

No. The calculation runs in your browser and the page only displays the result for the values currently entered.

Why might my result differ slightly from another calculator?

Small differences usually come from rounding, unit choices, default assumptions, or a different formula variant. Check the inputs and formula assumptions first.

BMR Calculator

Estimate basal metabolic rate from age, height, weight, and sex.

Biologybmrmetabolismhealth

Weight

Height

Age

Sex formula

BMR Calculator Formula

BMR = 10W + 6.25H - 5A + s

Enter the known values and the calculator applies this formula to produce the main result, plus supporting values that help you check the answer.

Symbol	Variable	Description
weight	Weight	Weight, entered in kg.
height	Height	Height, entered in cm.
age	Age	Age used by the calculator.

How to Use the BMR Calculator

1
Enter the known values
Fill in the fields and confirm that the units match the formula shown on the page.
2
Click Calculate
The primary answer appears in the highlighted row, with related check values underneath.
3
Read the result
BMR is the resting daily energy estimate before activity. Maintenance calories add activity assumptions.

What This Calculator Is Best For

Use it to estimate basal metabolic rate with the Mifflin-St Jeor equation and quick activity multipliers.

Estimate baseline calories.
Compare male and female formulas.
Plan a nutrition starting point.

How to Read the Result

BMR is the resting daily energy estimate before activity. Maintenance calories add activity assumptions.

Before You Rely on the Result

BMR is an estimate; body composition, health status, and tracking data can shift real needs.

BMR Calculator FAQ

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