BMI Calculator
Calculate your Body Mass Index with visual range indicators
Available
BMR Calculator
Calculate your Basal Metabolic Rate using all three major formulas with instant comparison
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Body Fat Calculator
Calculate body fat percentage using Navy circumference method.
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Heart Rate Zones
Calculate your heart rate training zones for optimal workout intensity
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One Rep Max
Estimate your maximum lift using Epley, Brzycki, and Lombardi formulas
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Muscle Potential
Casey Butt's formulas for maximum muscle potential
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Protein Calculator
Daily protein guidance: RDA, seniors, pregnancy, bodybuilding, longevity.
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Potato Hack
Calculate calorie deficit on a potato-only diet with resistant starch effects
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Running Pace Calculator
Calculate race finish times for 5K, 10K, half marathon, and full marathon based on your pace
Available