Select any clinical tool below to open its dedicated calculator with official medical formulas, validated ranges, and evidence-based standards.
Calculate your Body Mass Index (BMI) and determine your healthy weight category.
Estimate your body fat percentage and lean muscle mass using the U.S. Navy circumference method.
Compute your ideal body weight based on Devine, Robinson, Miller, and Hamwi equations.
Find the optimal weight range for your height based on medical standards.
Check compliance with U.S. Army Body Composition Program (AR 600-9) tape test standards.
Calculate your lean body mass (LBM) using the Boer, James, and Hume formulas.
Identify your body shape (Hourglass, Pear, Rectangle, Inverted Triangle, Apple).
Determine daily caloric requirements to maintain, lose, or gain weight safely.
Calculate your Basal Metabolic Rate (BMR) - the calories burned at complete rest.
Compute your Total Daily Energy Expenditure (TDEE) based on activity and metabolic rate.
Calculate daily carbohydrate, protein, and fat grams for your fitness goals.
Find the optimal daily protein intake for muscle building, fat loss, or health maintenance.
Calculate recommended daily carbohydrate intake based on athletic activity.
Calculate healthy dietary fat targets and saturated fat limits.
Calculate running/walking pace, time, or distance for 5k, 10k, marathon, or custom distances.
Estimate calories expended during over 25 activities including running, cycling, swimming, and gym.
Calculate your maximum single-repetition lift (1RM) and percentage training rep ranges.
Find your 5 aerobic training heart rate zones using the Karvonen formula.
Track pregnancy progress, current week, trimester, and key developmental milestones.
Calculate estimated date of delivery (EDD) based on LMP, conception, or IVF date.
Track healthy weekly weight gain targets during pregnancy based on pre-pregnancy BMI.
Find your most fertile days and estimated ovulation dates for the next 6 cycles.
Find the best dates for intercourse to achieve conception, or calculate when conception occurred.
Back-calculate probable conception and intercourse dates from your expected due date.
Predict your next menstrual period dates, cycle lengths, and PMS windows.
Estimate Glomerular Filtration Rate (eGFR) and kidney disease stage from serum creatinine.
Calculate total body surface area (m²) used for medical dosage and cardiac index.
Estimate Blood Alcohol Concentration (BAC), impairment level, and hours until sober.
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