Health & Fitness Calculators
26 toolsBuild a healthier routine with 26 practical calculators spanning body metrics, nutrition and macros, training & cardio, and women’s health. Track BMI, BMR and TDEE, estimate body fat, check waist-to-height, compute BSA, plan daily calories and set a realistic weight-loss timeline. Dial in macros with protein/carbs/fat splits, set protein, carb and fat targets (incl. AMDR & keto ranges), and plan fiber, water and balanced meal calorie distribution. Optimize performance: calculate running pace and splits, estimate calories burned via METs, determine heart-rate zones, approximate VO2max, compute 1RM, and convert steps ↔ distance ↔ calories. Support women’s health: estimate ovulation window, calculate due date, track pregnancy weight gain by BMI, and review gestational TDEE concepts.
Body Metrics & Weight Management (9)
Compute BMI, BMR and TDEE; estimate body fat (US Navy/3-sites); check waist-to-height; calculate body surface area; plan daily calories and map a safe, time‑bound weight‑loss strategy.
Nutrition & Macros (7)
Plan macro distributions for protein, carbs and fat; set protein goals by objective (cut/bulk/maintain); determine carb ranges (low‑carb/keto); compute fat range via AMDR; target fiber and water intake; and split meal calories across the day.
Training, Performance & Cardio (6)
Calculate running pace, speed and splits; estimate calories burned with METs; define heart‑rate zones (Karvonen/percentages); estimate VO2max (Cooper/Rockport); compute one‑rep max (Epley/Brzycki); and convert steps to distance and calories.
Women’s Health & Pregnancy (4)
Estimate ovulation and fertile window; calculate pregnancy due date (Naegele); plan recommended weight‑gain range by BMI; and explore gestational TDEE considerations for educational use.
More Health Calculators
- Calorie Calculator
- BMI Calculator
- BMR Calculator
- Body Fat Calculator
- Ideal Weight Calculator
- TDEE — Total Daily Energy Expenditure Calculator
- BMI — Body Mass Index Calculator
- BMR — Basal Metabolic Rate (Mifflin-St Jeor)
- Body Fat % (US Navy / 3-sites)
- Ideal Weight Range (Hamwi/Devine/Miller)
- Waist-to-Height Ratio Checker
- Body Surface Area (BSA) Calculator
- Daily Calorie Needs (Goal-based)
- Weight Loss Date & Deficit Planner
- Macro Split Planner (Protein/Carb/Fat)
- Protein Intake by Goal (cut/bulk/maintain)
- Carb Target (incl. low-carb/keto ranges)
- Fat Intake Range (AMDR)
- Fiber Intake Target (by kcal/sexo)
- Water Intake per Day (by weight/activity/climate)
- Meal Calories Split (breakfast/lunch/dinner/snacks)
- Running Pace, Speed & Split Calculator
- Calories Burned by Activity (MET-based)
- Heart Rate Zones (Karvonen/percentages)
- 1RM — One-Rep Max (Epley/Brzycki)
- Steps ↔ Distance ↔ Calories Converter
- Ovulation & Fertile Window Estimator
- Pregnancy Due-Date (Naegele)
- Pregnancy Weight-Gain Range (BMI-aware)
- Gestational TDEE (educational)
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