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Health & fitness

Calorie needs / TDEE

Estimate total daily energy expenditure by activity level.

Your result

Complete the fields and calculate.

Calculation method and formula

(10 × Weight [kg] + 6.25 × Height [cm] − 5 × Age + s) × Activity; s = 5 / −161

Understand the inputs

Weight
Unit: kg. Use a measured value or your own assumption.
Height
Unit: cm. Use a measured value or your own assumption.
Age
Whole number.
Sex used by formula
Choose the matching option; it determines the table value or calculation variant.
Activity
Choose the matching option; it determines the table value or calculation variant.

Assumptions and limitations

Mifflin–St Jeor estimates resting expenditure using kg, cm and years. The formula constant is +5 or −161. An activity factor adds another estimate, not a measurement.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Weight
75 kg
Height
180 cm
Age
34
Sex used by formula
Male
Activity
Moderately active
Example result2,651 kcal/day

Estimate for weight maintenance.

Sources and background: Mifflin et al. (1990)

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Calorie needs / TDEE work?+

(10 × Weight [kg] + 6.25 × Height [cm] − 5 × Age + s) × Activity; s = 5 / −161. Mifflin–St Jeor estimates resting expenditure using kg, cm and years. The formula constant is +5 or −161. An activity factor adds another estimate, not a measurement.

What assumptions should I consider for this result?+

Mifflin–St Jeor estimates resting expenditure using kg, cm and years. The formula constant is +5 or −161. An activity factor adds another estimate, not a measurement. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Health values are general information, not a diagnosis or personal treatment recommendation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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