What is a TDEE Calculator?
A TDEE Calculator estimates your total daily energy expenditure: the calories you burn in a day, including rest, daily movement and exercise.
TDEE is your BMR multiplied by an activity factor. Eating at your TDEE keeps weight steady, eating less leads to weight loss and eating more leads to gain. Activity levels are rough, so adjust based on how your weight changes.
How to use the TDEE Calculator
- Select sex.
- Enter age.
- Enter weight.
- Enter height.
- Select activity level.
- Tap Calculate to see the result.
- Tap Reset to clear the fields and try again.
Who should use it
- People planning a diet or meal plan
- Gym-goers setting calorie targets
- Anyone curious about their daily calorie needs
Key terms
- TDEE
- Total calories burned in a day.
- BMR
- Calories burned at complete rest.
- Activity level
- A multiplier for how active you are.
Frequently asked questions
How is TDEE different from BMR?
BMR is at rest; TDEE adds daily activity and exercise.
How accurate is it?
It is an estimate. Track your weight for two to three weeks and adjust.
Should I eat below my TDEE to lose weight?
A moderate deficit is common, but speak to a doctor or dietitian first.
Is this medical advice?
No. Consult a doctor.
Is my data stored?
No. Everything you enter stays in your browser.
Last updated: 1 November 2026