Calorie Calculator

Calculate your daily calorie needs using the Mifflin-St Jeor equation. Get personalized calorie targets for weight maintenance, loss, and gain based on your profile and activity level.

cm
kg

Enter your details to see your daily calorie needs.

How to Use the Calorie Calculator

  1. Select your unit system (metric or imperial).
  2. Enter your age, gender, height, and weight.
  3. Choose your activity level from the five options.
  4. View your BMR and daily calorie targets instantly.

About the Mifflin-St Jeor Equation

The Mifflin-St Jeor equation is considered one of the most accurate methods for estimating Basal Metabolic Rate (BMR). It was developed in 1990 and accounts for gender, age, weight, and height to predict the number of calories your body burns at rest.

Features

  • Mifflin-St Jeor BMR calculation
  • 5 activity levels from sedentary to very active
  • Calorie targets for maintain, lose, and gain weight
  • Metric and imperial unit support
  • 100% client-side processing for full privacy
  • No data stored, no sign-up required