Calculate. Track. Dominate.
Free fitness calculators to help you reach your goals faster
Fitness Calculators
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TDEE Calculator
Calculate your Total Daily Energy Expenditure and calorie needs
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One Rep Max
Estimate your maximum lift capacity for strength training
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Macro Calculator
Calculate optimal protein, carbs, and fat distribution
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Plate Calculator
Figure out which plates to load on your barbell
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Body Fat Calculator
Estimate your body fat percentage using measurements
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Strength Standards
See how your lifts compare to strength standards
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BMR Calculator
Calculate your Basal Metabolic Rate
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Why FitForge?
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Instant Results
Get accurate calculations in seconds. No waiting, no sign-ups required.
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Track Progress
Your calculation history is saved locally. Track your fitness journey over time.
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Share Anywhere
Share your results with trainers or friends. Every calculation gets a unique link.
Looking for more tools? Check out FrequencyFlow for therapeutic sound and recovery support