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
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?unitSystem=UnitsChoice · Required · Default: metric · Accepted values: metric, imperial
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?sex=Sex used by equationChoice · Required · Default: male · Accepted values: male, female
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?age=AgeNumber · Required · Default: 30
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?formula=BMR equationChoice · Required · Default: mifflin · Accepted values: mifflin, harris, katch
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?bodyFatPercent=Body fatPercentage · Required · Default: 20 · Used when formula = katch
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?weightKg=WeightNumber · Required · Default: 70 · Used when unitSystem = metric
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?heightCm=HeightNumber · Required · Default: 175 · Used when unitSystem = metric
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?weightLb=WeightNumber · Required · Default: 154 · Used when unitSystem = imperial
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?feet=Height feetNumber · Required · Default: 5 · Used when unitSystem = imperial
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?inches=Height inchesNumber · Required · Default: 9 · Used when unitSystem = imperial
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?activity=Activity levelChoice · Required · Default: moderate · Accepted values: sedentary, light, moderate, active, veryActive, extraActive
Outputs
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tdeeEstimated TDEENumber · Primary output · Suffix: kcal/day
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bmrEstimated BMRNumber · Suffix: kcal/day
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weeklyEnergyEstimated weekly expenditureNumber · Suffix: kcal/week
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activityFactorResultActivity multiplierNumber
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equationEquation usedText
Daily variability
Movement, training volume, food intake, temperature, sleep, and body composition can all cause actual expenditure to differ.