Health & FitnessFormula-based · Runs in your browser

TDEE Calculator

Estimate basal metabolic rate and total daily energy expenditure with multiple BMR equations and six activity levels.

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Inputs

Enter the values you know. Optional fields may be left empty.

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years
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kg
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cm
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Result

Updates as valid inputs change.

Calculated locally
TDEE is an estimate. Actual energy expenditure varies day to day and cannot be measured precisely from profile data alone.
Estimated TDEE
Estimated BMR
Estimated weekly expenditure
Activity multiplier
Equation used

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Calculation steps

Follow what happened from the selected formula to the displayed answer.

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  1. 1

    Formula selected

    The calculator uses the following formula or method.

    TDEE = estimated BMR × selected activity multiplier.

  2. 2

    Values entered

    Your values are placed into the calculation.

    Enter values to see what is used in this step.

  3. 3

    Result calculated

    The formula or method produces the following result values.

    Results will appear after a successful calculation.

  4. 4

    Answer formatted

    Displayed values are rounded and formatted using each output’s configured precision.

Scenario comparison

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Recent calculations

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How it works

Total daily energy expenditure is estimated by multiplying BMR by an activity factor. The comparison table keeps BMR fixed and shows how each activity level changes the estimate.

Input query strings and outputs

Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.

Input query strings

11
  • ?unitSystem= Units

    Choice · Required · Default: metric · Accepted values: metric, imperial

  • ?sex= Sex used by equation

    Choice · Required · Default: male · Accepted values: male, female

  • ?age= Age

    Number · Required · Default: 30

  • ?formula= BMR equation

    Choice · Required · Default: mifflin · Accepted values: mifflin, harris, katch

  • ?bodyFatPercent= Body fat

    Percentage · Required · Default: 20 · Used when formula = katch

  • ?weightKg= Weight

    Number · Required · Default: 70 · Used when unitSystem = metric

  • ?heightCm= Height

    Number · Required · Default: 175 · Used when unitSystem = metric

  • ?weightLb= Weight

    Number · Required · Default: 154 · Used when unitSystem = imperial

  • ?feet= Height feet

    Number · Required · Default: 5 · Used when unitSystem = imperial

  • ?inches= Height inches

    Number · Required · Default: 9 · Used when unitSystem = imperial

  • ?activity= Activity level

    Choice · Required · Default: moderate · Accepted values: sedentary, light, moderate, active, veryActive, extraActive

Outputs

5
  • tdee Estimated TDEE

    Number · Primary output · Suffix: kcal/day

  • bmr Estimated BMR

    Number · Suffix: kcal/day

  • weeklyEnergy Estimated weekly expenditure

    Number · Suffix: kcal/week

  • activityFactorResult Activity multiplier

    Number

  • equation Equation used

    Text

Daily variability

Movement, training volume, food intake, temperature, sleep, and body composition can all cause actual expenditure to differ.

Sources
Limitations
  • TDEE is an estimate. Actual energy expenditure varies day to day and cannot be measured precisely from profile data alone.
  • Health results are educational estimates, not a diagnosis or treatment recommendation. Individual circumstances may require a qualified clinician's assessment.