❤️ Health Calculators

10 free tools — no signup, no limits

Daily calorie needs (TDEE) based on age, weight, height, activity

Target heart rate zones for fat burn, cardio, peak

Daily water intake based on weight, activity and climate

Estimate body fat % using US Navy method — metric and imperial

Ideal body weight by height using 4 medical formulas

Calculate due date from last period or conception date

Calculate pace, time or distance for any run

Basal Metabolic Rate — calories burned at rest

Calculate 1RM for bench, squat, deadlift from reps done

Calculate fertile window and ovulation date from cycle

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