Free Health Tools
Free health and fitness calculators — BMI, calorie/TDEE, body fat, running pace and sleep cycles. Estimates only, not medical advice.
BMI Calculator
Calculate body mass index.
Calorie (TDEE) Calculator
Estimate daily calorie needs.
Body Fat Calculator
Estimate body fat % (Navy method).
Pace Calculator
Running pace, time & speed.
Sleep Calculator
Best bed/wake times by sleep cycles.
Due Date Calculator
Estimate your due date.
Ideal Weight Calculator
Healthy weight range for your height.
TDEE & Macro Calculator
Daily calories + macro split.
One Rep Max Calculator
Estimate your 1RM for any lift.
Water Intake Calculator
How much water to drink daily.
Blood Alcohol (BAC) Calculator
Estimate blood alcohol content.