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Calorie Calculator
Estimate daily calories to maintain, lose or gain weight.
About this calculator
The calculator finds your BMR with the Mifflin-St Jeor equation, multiplies it by your activity level to get maintenance calories, then adds or removes calories for your goal. About 7,700 kcal is treated as 1 kg of body weight, which is an approximation. General information only, not medical advice. Please talk to a doctor or dietitian before changing your diet or exercise.
Results are estimates for information only. Please confirm important decisions with a qualified professional.
Frequently asked questions
How accurate is it?
It is an estimate. Real needs vary with body type, sleep, stress and more. Watch your progress for 2-3 weeks and adjust.
Is eating below BMR safe?
Not without medical advice. The calculator warns you if the result is below your BMR.