Nutrition and hydration calculators
Turn dietary guidelines into grams for your body and goal: macros, protein, fibre and water, plus calories and macros for a meal or a recipe.
11 free calculators
- Macronutrient Calculator - Protein, carb and fat grams for your calories and diet style. Also called: macro calculator, IIFYM calculator, macros for weight loss.
- Daily Water Intake Estimator - Quick litres-per-day estimate from weight, activity and climate. Also called: water intake calculator, how much water should I drink, hydration calculator.
- Protein Intake Calculator - Daily protein range for your body weight and goal. Also called: protein calculator, how much protein per day, protein per kg calculator.
- Carbohydrate Intake Calculator - Daily carbohydrate grams for your calories and eating style. Also called: carb calculator, carbs per day calculator, low carb calculator.
- Fat Intake Calculator - Daily fat grams and a healthy saturated, mono and poly mix. Also called: fat calculator, how much fat per day, dietary fat calculator.
- Fiber Intake Calculator - Daily fibre target by age and sex. Also called: fibre calculator, how much fiber per day, daily fiber needs.
- Sugar Intake Limit Calculator - Your daily free-sugar limit in grams and teaspoons. Also called: sugar calculator, how much sugar per day, added sugar limit.
- Sodium Intake Calculator - Daily sodium and salt limit by age and health. Also called: salt intake calculator, sodium per day, salt to sodium converter.
- Daily Water Intake Calculator - Detailed water goal with exercise, climate and pregnancy. Also called: water calculator, daily hydration calculator, water intake for exercise.
- Meal Calorie Calculator - Add foods and grams to total a meal’s calories and macros. Also called: food calorie calculator, meal calorie counter, calories in my meal.
- Recipe Nutrition Calculator - Nutrition per serving for any home recipe. Also called: recipe calorie calculator, recipe nutrition analyzer, calories per serving calculator.
More health calculators
- Weight & BMI
- Body composition
- Body measurements
- Energy & nutrition
- Weight management
- Exercise & calories
- Fitness & training
- Sleep & recovery
- Period & fertility
- Pregnancy
- Postpartum & newborn
- Child growth
- Contraception & sexual health
- Women's health checks
- Medication & lab results
- Home energy
- Education
- All 112 health calculators
These calculators are for education only and are not medical advice. See the medical disclaimer and how we build and review our tools. Looking for medicine prices? Compare medicine prices in 32 countries on MediHub.