BMR Calculator

Estimate the energy your body may use at rest using the Mifflin–St Jeor equation.

Mifflin–St Jeor estimate

Read the result in context

The body at rest still carries a living context.

Basal metabolic rate is an estimate of the energy needed for basic functions at rest. It is not the same as a daily calorie target.

Real-world energy needs can differ with activity, sleep, illness, medication, hormonal factors, and changes in body composition.

This calculator uses a commonly referenced educational method. Review the underlying source before acting on a result.

More than an equation

Sleep, medications, symptoms, routines, and life stage can all shape the conversation around energy.

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