Cardio & Energy

Training calculators for runners, cyclists, swimmers and lifters — validated formulas from sports science literature.

TDEE Calculator

Calculate your Total Daily Energy Expenditure with the Mifflin-St Jeor equation and standard activity multipliers. Maintenance, loss and gain estimates.

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VO2 Max Calculator

Estimate your VO2 max from the Cooper 12-minute run test and compare it with Cooper Institute fitness norms by age and sex. Free and instant.

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Calories Burned Calculator

Estimate calories burned for 24 activities using MET values from the 2011 Compendium of Physical Activities. By body weight and duration, free and instant.