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Lean Body Mass Calculator
Calculate your Lean Body Mass (LBM) and fat-free weight in pounds or kilograms using scientific Boer, James, and Hume clinical formulas.
Blog Archive
Archives: Calculators
Explore all editorial articles, guides, and tutorials filed under "Archives: Calculators".
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Army Body Fat Calculator
Calculate US Army body fat percentage and test compliance with Army Regulation (AR) 600-9 screening tables.
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Anorexic BMI Calculator
Clinical malnutrition screening tool based on DSM-5 diagnostic criteria evaluating severe, moderate, and mild anorexia nervosa underweight thresholds.
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Overweight Calculator
Assess excess body weight above healthy clinical thresholds and compute realistic weight reduction milestones and timelines.
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Healthy Weight Calculator
Calculate your target healthy weight range based on your exact height and WHO Body Mass Index boundaries (18.5 to 24.9).
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Macro Calculator
Calculate your daily macronutrient ratio splits (grams of protein, carbohydrates, and healthy fats) tailored to fat loss, maintenance, or muscle growth.
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Pace Calculator
Calculate running pace, race split times, and speed for 5K, 10K, Half Marathon, and Full Marathon distances.
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One Rep Max Calculator
Calculate your estimated one-rep maximum (1RM) for strength lifts using the Brzycki, Epley, and Lombardi formulas from any submaximal set.
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Target Heart Rate Calculator
Calculate your maximum heart rate (MHR) and 5 cardiovascular exercise training zones (Fat Burn, Aerobic, Anaerobic, VO2 Max) using the Karvonen formula.
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Due Date Calculator
Calculate your estimated pregnancy due date, current gestational week, and trimester milestones based on your last menstrual period (LMP) or conception date.