TDEE calculator.

What TDEE means.

Total Daily Energy Expenditure is an estimate of the energy you use in a day. It combines your basal metabolic rate (BMR) — the energy needed at rest — with the energy used by movement, exercise, digestion, and daily activity.

The formula used here

BMR uses the Mifflin–St Jeor equation:

• Male: 10 × weight (kg) + 6.25 × height (cm) − 5 × age + 5
• Female: 10 × weight (kg) + 6.25 × height (cm) − 5 × age − 161

TDEE is BMR multiplied by an activity factor from 1.2 (sedentary) to 1.9 (extra active). These factors are broad categories, not measurements.

What TDEE does not tell you

• Your exact calorie burn on a given day.
• How your body will respond to a calorie change.
• What you should eat, or whether you should diet.
• How medication, medical conditions, or pregnancy affect your needs.

How to use it sensibly

1. Treat the result as a range, not a precise number.
2. Compare it with your real weight trend over several weeks.
3. Do not make large calorie changes without professional guidance.
4. Use the app’s weight trend to see whether your actual intake and weight are moving in the direction you expect.