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BMI
Estimate body mass index from height and weight.
bmi calculatorbody mass index
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For general wellness estimates
Health Tools
Health and fitness calculators for general reference, including BMI, calories, hydration, and training zones.
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Body Fat
Estimate body fat percentage from circumference measurements using a Navy-style formula.
body fat calculatorbody fat percentage
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Macros
Split daily calories into protein, carbs, and fat grams using common macro-distribution presets or custom percentages.
macro calculatormacronutrient calculator
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BMR
Estimate basal metabolic rate to understand resting calorie burn.
bmr calculatorbasal metabolic rate
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TDEE
Estimate total daily energy expenditure using activity level.
tdee calculatordaily calories
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Ideal Weight
Estimate a reference ideal body weight range based on height.
ideal weight calculatortarget weight
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Water Intake
Estimate daily water intake needs for general hydration planning.
water intake calculatorhydration
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Calorie Calculator
Estimate calories for maintenance, weight loss, or weight gain goals.
calorie calculatormaintenance calories
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Target Heart Rate
Estimate target heart rate training zones from age.
target heart rate calculatorexercise zones
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Pace Calculator
Calculate running or walking pace, speed, and finish time.
pace calculatorrunning pace
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Sleep Cycle
Estimate bedtimes and wake-up times in 90-minute sleep cycles with an adjustable fall-asleep delay.
sleep cycle calculatorbedtime calculator
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Calories Burned
Estimate calories burned during exercise based on activity type, duration, and body weight using MET values.
calories burned calculatorexercise calorie calculator
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1RM Calculator
Estimate your one-rep max using 5 proven formulas. See training zones, percentage charts, and rep-weight targets.
one rep max calculator1rm calculator
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Due Date
Estimate your baby's due date based on your last menstrual period or conception date. Track milestones and gestational age.
pregnancy due date calculatordue date calculator
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