Estimate how many calories your body uses each day based on age, size and activity.
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For general information only. These results are estimates, not a diagnosis or medical advice. Always talk to a doctor or qualified health professional about your health. In an emergency, call your local emergency number.
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How to use
Enter your sex, age, weight and height.
Pick your usual activity level.
Read your maintenance calories and gradual change targets.
Frequently asked questions
How accurate is it?
The Mifflin-St Jeor equation is the most accurate everyday formula, but individual needs can differ by 10% or more. Track your weight for a few weeks and adjust.
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