Health calculator

BMR Calculator

Estimate how much energy your body may use at rest before activity is added.

Calculated privately on your device
No account. Formula and assumptions are shown below.

Calculator inputs

BMR details

Formula & disclaimer

Mifflin–St Jeor: Men = 10W + 6.25H − 5A + 5; Women = 10W + 6.25H − 5A − 161

View assumptions

Formula reviewCalcs at Hand Editorial TeamVerified 28 August 2026 · automated checks included

Three useful checks, kept deliberately short.

What this result includes

The equation estimates about 1,376 kcal per day at rest.

A practical example

A 35-year-old woman, 68 kg and 165 cm: Multiply weight by 10 · Add 6.25 times height · Subtract five times age and the equation constant.

Common input mistake

Activity, health status, pregnancy, medication and body composition can make actual daily needs different.

Mifflin–St Jeor: Men = 10W + 6.25H − 5A + 5; Women = 10W + 6.25H − 5A − 161

BMR is a predictive resting-energy estimate, not a measurement made by indirect calorimetry.

Keep in mind: For adult planning only. This estimate is not a nutrition prescription or medical advice.

Produced byCalcs at Hand Editorial Team

Last formula check28 August 2026

Review methodKnown examples + boundary cases