Formula
Mifflin-St Jeor × activity factor
Estimate maintenance, loss, or gain calories.
Estimate maintenance calories, plus loss and gain targets with sample diet charts.
Enter your details, calculate, then review loss & gain diet charts below
Results show maintain / loss / gain calories and sample diet charts after you calculate.
Informational only — not medical advice. Results are estimates. Consult a qualified clinician for health decisions. Diet charts are example templates only — not personalized medical nutrition therapy.
Mifflin-St Jeor × activity factor
Daily targets often start from resting burn — check the BMR calculator. To see fat grams at a chosen percentage, use the fat intake calculator.
Calorie needs vary by lifestyle and health status.
Enter age, sex, height, weight, activity, and goal.
Daily calorie targets from BMR and activity.
Enter age, sex, height, weight, activity, and goal.
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