Calorie Calculator (TDEE)
Estimate how many calories you burn per day (your TDEE) and your resting metabolism (BMR), then see targets to maintain, lose or gain weight — using the trusted Mifflin–St Jeor formula.
How to use
Enter your sex, age, weight, height and activity level. The tool computes your BMR (calories at rest) and multiplies by an activity factor to get your TDEE — total daily calories.
Use the maintenance number to hold your weight, or the −500/+500 targets to lose or gain roughly 0.45 kg (1 lb) per week. Adjust portions and activity to hit your goal.
FAQ
What are TDEE and BMR?
BMR is the calories your body uses at complete rest; TDEE is BMR multiplied by an activity factor — the total you burn in a typical day including movement and exercise.
Which formula is used?
Mifflin–St Jeor, widely regarded as one of the most accurate predictive equations for resting metabolic rate in healthy adults.
How do I lose weight with this?
Eat below your TDEE. A deficit of about 500 kcal/day is a common, sustainable target for roughly 0.45 kg (1 lb) of loss per week.
Is this medical advice?
No — it's an estimate for general guidance. Individual needs vary; consult a professional for medical or dietary decisions.