Free Weight Loss Calculators and Tools

Calories and Nutrients

  • Calorie Calculator
    How many calories should you be consuming each day? Also displays 7 day calorie cycle (zig zag).
  • Weight Gain Calculator
    Calculates optimal amount of calories, carbs, protein, and fats for muscle gain.
  • Macronutrient Calculator
    How many grams of Carbohydrate, Protein, and Fat should you be eating at each meal?
  • Calories Burned
    Will calculate the number of calories burned by a variety of exercises.
  • Pregnancy Calorie Calculator
    Calculates daily calorie needs during pregnancy.
  • Breastfeeding Calorie Calculator
    Calculates daily calorie needs while breastfeeding.

Estimate Weight Loss

  • Weight Loss Calculator
    How long will it take to lose the weight?
    Based on your goal weight and daily calorie deficit.

Personal Measurements

  • Ideal Body Weight
    What is your ideal body weight?
  • Body Fat Calculator
    Calculates body fat percentage based on skinfold measurements or a simple waist measurement.
  • BMI Calculator
    Does the government think you are overweight?
  • Children’s BMI and Weight Calculator
    Determine whether your child is overweight or underweight.
  • Waist to Hip Ratio
    This calculator can determine whether your fat distribution is unhealthy.


  • Target Heart Rate
    What is your target heart rate for fat burning?
  • Calories Burned
    Will calculate the number of calories burned by a variety of exercises.


  • Convert Stones, Pounds, Kilograms, Grams, Ounces, Calories and Kilojoules
    Instant conversion between a variety of common units of measurement.

“I just wanted to say how great this site is. The Macro-Nutrient and Daily Calorie Needs calculators I use all the time. Thank you!”

– Terra

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