Health Calculators

Calculate your ankle-brachial index to screen for peripheral artery disease. Enter blood pressure readings from your arm and ankles for instant ABI results with clinical interpretation for both legs.

Calculate your International Normalized Ratio (INR) from prothrombin time (PT) test results. Instant conversion with clinical interpretation for patients on warfarin and healthcare providers.

Calculate your lean body mass instantly using the Boer formula. Discover what percentage of your weight is muscle, bone, and organs vs. fat—with interpretation benchmarks most calculators don't provide.

Calculate your Fat-Free Mass Index to measure lean muscle mass relative to height. Get your FFMI score, see how you compare, and understand your natural muscular potential.

Calculate your BMI and BMI Prime instantly. Get your weight classification, health risk level, and understand what your numbers mean—with results tailored for men and women.

Calculate your ideal calorie deficit for safe weight loss. Get personalized daily calorie targets for sustainable results based on your goals and activity level.

Calculate daily calories for safe weight loss based on your goals. Get personalized calorie targets and timeline predictions for sustainable results.

A1C calculator converts between A1C percentages and average glucose values, helping you interpret diabetes numbers and track blood sugar control.