Health & Fitness Calculators
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BMI Calculator
Calculate your Body Mass Index with category classification and healthy weight range.
BMR & TDEE Calculator
Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure with goal-based calorie targets.
Calorie Calculator
Determine daily calorie needs accurately based on age, weight, height, and activity level.
Macro Calculator
Calculate your ideal macronutrient split — protein, carbs, and fat — for your fitness goals.
Running Pace Calculator
Determine your running pace, speed, and finish time for any distance instantly.
Body Fat % Calculator
Estimate your body fat percentage using the US Navy circumference method with category classification.
Ideal Weight Calculator
Find your ideal body weight using five clinical formulas — Devine, Robinson, Miller, Hamwi, and BMI-22.
Water Intake Calculator
Calculate your daily water intake based on weight, activity level, climate, and pregnancy status.
Heart Rate Zone Calculator
Find your 5 personalised cardio training zones using Karvonen and simple percentage methods.
One-Rep Max (1RM) Calculator
Estimate your max lift using 7 formulas and get a full training weight percentage breakdown.
Protein Intake Calculator
Get your personalised daily protein range by weight, activity, goal, and body fat percentage.
Sleep Cycle Calculator
Find the best times to sleep or wake up — aligned with 90-minute cycles to wake feeling refreshed.