TDEE Calculator
Estimate total daily energy expenditure (TDEE) from weight, height, age, and an activity multiplier.
- TDEE (women)
- 2250 kcal/day
- BMR (men)
- 1618 kcal/day
Formula: TDEE = BMR (Mifflin-St Jeor) × activity factor
About TDEE Calculator
TDEE Calculator is a free online calculator that gives you an instant, accurate result as you type. Estimate total daily energy expenditure (TDEE) from weight, height, age, and an activity multiplier.
The calculation uses the standard formula TDEE = BMR (Mifflin-St Jeor) × activity factor and updates live with every change to the inputs. Everything runs client-side in your browser — fast, private, and free to use as often as you like.
Activity multipliers range from 1.2 (sedentary) through 1.375 (light), 1.55 (moderate), 1.725 (very active) to 1.9 (athlete-level training).
Results are estimates for educational purposes and not medical advice.
Frequently Asked Questions
Is TDEE Calculator free to use?
Yes. TDEE Calculator is completely free, with no sign-up, no downloads, and no usage limits. You can use it as many times as you like on any device with a web browser.
How accurate is this calculator?
The calculator applies the standard formula (TDEE = BMR (Mifflin-St Jeor) × activity factor) with full floating-point precision and rounds only the displayed result. For most practical purposes the results are exact.
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