Free Tools

Free Health & Fitness Calculators

Everything you need to plan, track, and understand your health — free health calculators for weight loss, nutrition, fitness, and gut health. No sign-up, no cost, ever.

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Weight Loss Toolkit

Find your BMI, daily calorie needs, macros, body fat %, water intake, and a full 7-day meal plan.

  • BMI & body fat calculator
  • Daily calorie (TDEE) calculator
  • Weight loss timeline planner
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Nutrition Toolkit

Dial in your daily protein target, set up an intermittent fasting window, and check net carbs.

  • Protein intake calculator
  • Intermittent fasting scheduler
  • Net carbs calculator
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Fitness Toolkit

Find your target heart rate zones and estimate calories burned from exercise or daily steps.

  • Heart rate zone calculator
  • Exercise calorie burn calculator
  • Steps-to-calories calculator
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Gut Health Toolkit

Check your daily fiber target and take a quick, informal bloating trigger quiz.

  • Fiber intake calculator
  • Bloating trigger quiz
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