One-Rep Max Calculator
Estimate your 1RM from any rep count. Uses the Epley and Brzycki formulas. Both formulas work best for 1-10 reps; beyond that, the estimate gets unreliable.
What you lifted
Enter a weight and reps
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TDEE Calculator
Total daily energy expenditure
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BMR Calculator
How many calories you burn at rest
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Macro Calculator
Daily protein / carbs / fat split
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Calorie Deficit Calculator
How many calories to lose weight
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Protein Intake Calculator
Daily protein target
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Ideal Weight Calculator
Healthy weight for your height
Educational tool. The numbers here are estimates based on population averages. Your actual needs depend on genetics, body composition, medical conditions, sleep, and other factors this calculator can't measure. Use the output as a starting point, track your weight and energy for 2–3 weeks, and adjust accordingly. If you have a medical condition (thyroid disorder, diabetes, eating disorder history, pregnancy), consult a registered dietitian before changing your intake.