Calorie Calculator

Estimate BMR and maintenance calories using the Mifflin-St Jeor equation.

Enter all required values.

About this calculator

Estimate your basal metabolic rate and a general maintenance calorie target.

How to use

  1. Choose sex and activity level.
  2. Enter age, height, and weight.
  3. Read the estimated BMR and maintenance calories.

Formula

Mifflin-St Jeor equation with an activity multiplier.

Example

A typical adult input should return finite BMR and maintenance calories.

FAQ

Is this a medical diagnosis?

No. It is only a general estimate.

What activity factors are used?

Sedentary 1.2, light 1.375, moderate 1.55, active 1.725, and very active 1.9.

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Conversion

Weight Converter

Convert between metric and imperial weight units.

This calculator provides a general estimate and is not medical advice.

Results are for informational purposes only. Verify important calculations independently.