Health

Estimate your child’s future adult height using Khamis–Roche or mid-parental method. Works in cm/kg or ft/in/lb. Fast & free.

Free body fat calculator using U.S. Navy and BMI formulas. Enter height, weight and measurements in cm/in or kg/lb to estimate body fat percentage.

Free lean body mass calculator using the Boer formula, with an optional body fat% method. Enter your weight and height in kg/lb and cm/in to estimate LBM and fat mass.

Free face shape calculator using forehead, cheekbones, jawline and face length to classify your face as oval, round, square, heart or diamond.

Free cholesterol ratio calculator. Enter total, HDL, LDL and triglycerides to get TC/HDL, LDL/HDL, TG/HDL, non-HDL and estimated LDL in seconds.

Free waist-to-height ratio calculator. Enter your height and waist in cm or inches to get WHtR, health risk category, and simple interpretation.

Use our waist-to-hip ratio calculator to quickly assess your body shape and health risk. Supports cm and inches, with separate cut-offs for men and women.

Estimate your conception date, due date, and gestational age using due date or LMP with this free conception date calculator.

Predict your next period start/end, ovulation day, and fertile window from LMP and cycle length with this free period calculator.

Calculate INR instantly using patient PT, control PT, and ISI. Fast, accurate, and mobile-friendly INR calculator online.