Free health and fitness tools
8 free tools ready to use
Free
BMR TDEE Calculator
Calculate basal metabolic rate and daily calorie needs (TDEE).
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Free
Heart Rate Zone Calculator
Calculate training heart-rate zones from your age.
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Free
Macro Calculator
Split calories into protein, carbs, and fat macros.
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Free
One Rep Max Calculator
Estimate your one-rep max from weight and reps.
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Free
Ovulation Period Calculator
Estimate fertile window and next period from cycle data.
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Free
Running Pace Calculator
Solve running pace, time, or distance.
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Free
Sleep Calculator
Find ideal bedtime or wake times based on 90-minute sleep cycles.
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Free
Water Intake Calculator
Estimate your daily hydration target from weight and activity.
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