Health & Wellness Calculators
6 tools
General health and fitness numbers, calculated from what you enter: a pregnancy due date, BMI and other body metrics, BMR, body fat with the US Navy method, running pace and finish times, and bedtimes that fit whole sleep cycles. Each tool shows its formula and, where it matters, the published sources behind it. The results are estimates for information, not a diagnosis or medical advice, so talk to a doctor about anything that concerns you.
Tools in this category
Bedtime Calculator
Find bedtimes for your wake-up time, or wake-up times for your bedtime, in whole sleep cycles, with the CDC’s recommended hours for adults and teensBMR Calculator
Estimate your basal metabolic rate and daily energy use with the Mifflin-St Jeor equationDetailed BMI & Body Metrics
Dual Quetelet and Oxford New BMI calculation with reference proportionsPregnancy Due Date Calculator
Estimate your due date, how far along you are and your trimester with Naegele’s ruleRunning Pace Calculator
Pace, finish time or distance from the other two, pace and speed conversion, race-time prediction and a splits table, in km or milesUS Navy Body Fat Calculator
Estimate your body fat percentage and lean mass with the U.S. Navy circumference (tape) method