Health and fitness
BMI, calorie, body fat, heart rate, due date and fitness calculators that show the formula behind every result.
- BMI Calculator Your BMI 22.9 Category Normal weight (18.5 to 24.9)
- BMR Calculator: Basal Metabolic Rate Basal metabolic rate (kcal per day) 1,649
- Body Fat Calculator (US Navy Method) Estimated body fat (%) 19.8 Category Average
- Body Surface Area Calculator (Mosteller) Body surface area (m²) 1.84
- Calorie Calculator: Daily Calories for Your Goal Daily calorie target (kcal) 2,556 Maintenance calories (kcal per day) 2,556
- Calorie Deficit Calculator for Weight Loss Daily calorie target (kcal) 1,950 Daily calorie deficit (kcal) 550
- Calories Burned Calculator (MET Method) Calories burned 280 Calories per hour 560
- Pregnancy Due Date Calculator Estimated due date August 3, 2027 Second trimester starts February 2, 2027
- Healthy Weight Range Calculator by Height Lowest healthy weight (kg) 56.7 Highest healthy weight (kg) 76.3
- Heart Rate Zone Calculator (Karvonen Method) Estimated maximum heart rate 180 Heart rate reserve 120
- Ideal Weight Calculator by Height Average of the four formulas (kg) 70 Devine formula (kg) 70.5
- Lean Body Mass Calculator (Boer Formula) Lean body mass 56 Body fat mass 14
- Macronutrient Calculator Protein (g) 100 Carbs (g) 250
- One Rep Max Calculator (Epley and Brzycki) Estimated 1RM (Epley) 116.7 Estimated 1RM (Brzycki) 112.5
- Ovulation and Fertile Window Calculator Estimated ovulation day November 10, 2026 Fertile window starts November 5, 2026
- Running Pace Calculator Pace per km 5:00 Pace per mile 8:03
- Period Calculator: Predict Your Next Period Dates Next period (estimated) November 24, 2026 Estimated ovulation day November 10, 2026
- Daily Protein Intake Calculator Protein per day (g) 56 Protein per meal (g) 18.7
- Sleep Calculator: Best Bedtime and Wake-Up Time 5 cycles (7 h 30 min) 23:15 6 cycles (9 h) 21:45
- Steps to Miles Calculator Distance (miles) 4.72 Distance (kilometres) 7.6
- TDEE Calculator: Total Daily Energy Expenditure Total daily energy expenditure (kcal per day) 2,556 Basal metabolic rate (kcal per day) 1,649
- VO2 Max Calculator (Cooper 12-Minute Run Test) Estimated VO2 max (ml/kg/min) 42.4 Aerobic capacity (METs) 12.1
- Waist-to-Height Ratio Calculator Waist-to-height ratio 0.46 Category Healthy (0.40 to 0.49)
- Waist-to-Hip Ratio Calculator Waist-to-hip ratio 0.8 Result Below the WHO abdominal obesity cut-off
- Daily Water Intake Calculator Water per day (litres) 2.8 250 ml glasses per day 11.2
- Weight Loss Time Calculator: Days to Reach Your Goal Weight Days to reach goal 77 Weeks to reach goal 11