Health Calculators

Explore educational calculators for common health and wellbeing estimates.

Available calculators

Estimate adult body mass index for educational use.

Estimate resting daily energy needs for educational use.

Estimate daily maintenance energy from an activity selection.

Estimate an educational due date from a last menstrual period or conception date.

Estimate body-fat percentage from circumference measurements using the documented historical equations.

Compare four historical height-based ideal-body-weight formulas and their spread.

Estimate an ovulation date, a six-day fertile window, and the next cycle start from a regular cycle.

Estimate age-predicted maximum heart rate and moderate and vigorous exercise ranges.