Calorie Calculator

About Calorie Calculator

The calorie calculator uses the Mifflin-St Jeor equation and an activity multiplier to estimate maintenance calories, then applies the selected goal.

How to Use

The calorie calculator uses the Mifflin-St Jeor equation and an activity multiplier to estimate maintenance calories, then applies the selected goal. Fill in Age, Weight, Height, Sex, Activity level, and Goal, then review the calculated BMR, Maintenance calories, Mild deficit target, Target calories, and Goal note.

  1. Open the calculator : Use Calorie Calculator from the Health category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What does the Calorie Needs Calculator estimate?

It estimates daily calorie needs based on your inputs and activity level.

How accurate is the result?

Treat it as a starting estimate, since body size, activity, and goals can change the number.

Inputs

  • Goal
  • Age
  • Weight
  • Height
  • Sex
  • Activity level

Outputs

  • BMR
  • Maintenance calories
  • Target calories
  • Goal note

Formula

Target calories = maintenance calories adjusted for maintenance, cutting, or bulking.