Health

Fitness and body calculators

Estimate body metrics, calories, strength targets, and training scenarios with clear, browser-based tools.

Body metrics

Use screening and measurement tools for a quick starting point.

Calculate BMI and a common healthy weight range.

Add waist context to a metric or imperial BMI estimate.

Estimate body-fat percentage from measurement inputs.

Estimate basal metabolic rate and daily maintenance calories.

Estimate maintenance, weight-loss, or muscle-gain calories.

Estimate a daily protein target from body and activity inputs.

Plan lifting targets, military fitness scores, and recovery timing.

Compare one-rep-max formulas and training percentages.

Estimate scores across all six Army Combat Fitness Test events.

Find bedtime and wake-time options from sleep cycles.

Explore an educational lifespan estimate from lifestyle inputs.