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BMR CalculatorMath

Calculate your Basal Metabolic Rate (BMR) to understand your body's energy needs at rest.

Resting calories / day

1674 kcal

Mifflin-St Jeor

Capabilities & How-To Guide

Instructions, supported options, and client-side privacy guarantee.

Your Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic life-sustaining functions, such as breathing and keeping your heart beating, while at rest.

Why Calculate BMR?

  • Weight Management: First step in creating a calorie deficit or surplus.
  • Nutrition Planning: Fine-tune daily macro intake based on energy needs.
  • Fitness Monitoring: Track metabolic changes from body composition shifts.
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