Instant calculator
Calorie Calculator
Use this calorie calculator to estimate maintenance calories with the Mifflin-St Jeor equation and a standard activity multiplier.
How to use
Quick steps
- Enter sex, age, weight, height (feet), height (inches), activity level.
- Review the instant answer block and supporting calculations.
- Compare the result with related tools in the same category before making a decision.
Formula
How this calculator works
Daily calories = BMR x activity multiplier
This is a planning estimate. Real calorie needs vary with goals, muscle mass, medications, and health conditions.
FAQ
Common questions
How does the calorie calculator work?
It uses Daily calories = BMR x activity multiplier. Enter sex, age, weight, height (feet), height (inches), and activity level to generate an instant estimate.
When should I use this calorie calculator?
Estimate maintenance calories using age, sex, size, and activity level.
What should I keep in mind?
This is a planning estimate. Real calorie needs vary with goals, muscle mass, medications, and health conditions.