Live
BMR calculator
Estimate resting energy expenditure with Mifflin-St Jeor and a Harris-Benedict comparison.
Energy calculators
Estimate energy needs with the assumptions in view.
Energy equations are useful starting points—not measurements. EVR keeps activity factors, formula choices, and uncertainty visible.
Live
TDEE calculator
Estimate total daily energy expenditure from your body data and activity.
Live
Calorie deficit calculator
Explore a moderate energy target based on your estimated maintenance needs.
Live
Body fat calculator
Estimate body-fat percentage with the Navy circumference method and visible equations.
Transparent by design
Every EVR calculator is designed to show its method, assumptions, units, and limits alongside the result.