BMR estimate
BMR is the calories your body uses at rest before daily activity.
Health calculators
Calorie Calculator
Estimate BMR, maintenance calories, and daily calorie targets for weight loss, maintenance, or lean gain.
Complete guide
How to use Calorie Calculator
The Calorie Calculator estimates basal metabolic rate with the Mifflin-St Jeor formula, multiplies it by activity level, and adjusts for your goal. It also suggests a simple protein range based on body weight.
Maintenance calories
Activity level turns BMR into an estimated daily maintenance target.
Goal target
Choose loss, maintenance, or lean gain to adjust the calorie target.
Answers
Calorie Calculator FAQs
Is this medical advice?
No. It is a general calculator and not a substitute for medical or nutrition guidance.
Why are my results estimates?
Real calorie needs vary with body composition, activity, hormones, sleep, and tracking accuracy.
What units does it use?
Inputs use US-friendly inches and pounds.
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