Health & Fitness
16 free tools
Track the numbers that matter for fitness and wellbeing — BMI, body-fat percentage, BMR and daily calorie needs, macros, ideal weight, hydration, and heart-rate zones. These are screening and planning tools, not medical diagnoses; each one explains what its result means and, just as importantly, where it falls short.
- BMI Calculator Popular Body Mass Index, metric or imperial.
- Sleep Cycle Calculator Best bedtime & wake-up times.
- BMR & TDEE Calculator Your resting and daily calorie burn.
- Calorie Calculator Popular Daily calories for your goal.
- Due Date Calculator Your estimated pregnancy due date.
- Macro Calculator Daily protein, carb, and fat targets.
- Body Fat Calculator Body-fat percentage from a tape measure.
- Ideal Weight Calculator Your ideal weight and healthy range.
- Water Intake Calculator Your daily water target.
- Ovulation Calculator Estimate your fertile window.
- Blood Alcohol (BAC) Calculator Estimate your blood alcohol level.
- Heart Rate Zones Calculator Your five training zones.
- Protein Intake Calculator Your daily protein target.
- A1C Calculator A1C to average glucose.
- One-Rep Max Calculator Estimate your 1RM and training loads.
- Running Pace Calculator Pace, speed, and race splits.