🔥 Calorie Calculator
Estimate the calories your body uses in a day, based on age, size and activity.
General information only. This tool is not medical advice and cannot diagnose anything. Talk to a doctor or registered dietitian about your health or diet.
How to use the Calorie Calculator
- Enter sex, age, height and weight.
- Choose your activity level.
- Read your BMR and daily maintenance calories.
Examples
- A 30-year-old man, 180 cm, 80 kg, sedentary: BMR about 1,780 kcal, maintenance about 2,136 kcal.
Formula and method
Mifflin-St Jeor: BMR = 10 × kg + 6.25 × cm − 5 × age + 5 (men) or − 161 (women). Maintenance = BMR × activity factor (1.2 to 1.9). Results are estimates and vary between people.
Frequently asked questions
Is this a diet plan?
No. It only estimates maintenance calories.
Who should not use it?
It is for adults aged 18 to 100. Ask a health professional about medical or dietary needs.
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