Calorie, macro, protein, carb, fat, fiber, and vitamin calculators.
Based on peer-reviewed medical guidelines from WHO, CDC, and AHA.
All calculations run in your browser. No data leaves your device.
Get immediate clinical interpretations and personalized insights.
Most used by healthcare professionals
Calculate your daily calorie needs based on personal factors and goals.
Calculate your ideal daily protein intake based on weight and activity.
Calculate your complete macronutrient breakdown for optimal nutrition.
Calculate your total daily energy expenditure including all activities.
Calculate your basal metabolic rate for resting calorie needs.
25 tools available
Calculate your daily calorie needs based on personal factors and goals.
Calculate your ideal daily protein intake based on weight and activity.
Determine your daily carbohydrate needs based on calorie intake.
Calculate your daily fat needs based on calorie intake.
Calculate your complete macronutrient breakdown for optimal nutrition.
Calculate your total daily energy expenditure including all activities.
Calculate your basal metabolic rate for resting calorie needs.
Calculate your recommended daily fiber intake based on age and gender.
Determine your ideal daily water intake based on weight and lifestyle.
Estimate calories in your meals by selecting foods and portions.
Calculate your body's fuel needs based on weight and activity.
Calculate carb loading needs for endurance event preparation.
Optimize your protein distribution across daily meals.
Calculate your calorie deficit for weight loss based on TDEE.
Calculate your calorie surplus for muscle gain based on TDEE.
Determine your ideal macro ratio based on goals and body type.
Find the exact calories needed to maintain your current weight.
Calculate TDEE and apply a deficit to find your weight loss target.
Calculate BMR using the Harris-Benedict equation.
Calculate the ideal protein amount for each of your daily meals.
Calculate your recommended daily micronutrient intake.
Plan your calorie budget to reach your weight goal on schedule.
Assess your body's fuel status based on activity and eating patterns.
Rate your meal's nutritional quality with a score from 1-100.
Set complete daily nutrition goals tailored to your needs.
These calculators are for educational and informational purposes only. They are not intended to replace professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider for personalized medical guidance.
Our nutrition & diet calculators provide evidence-based tools for healthcare professionals, patients, and students. Each calculator is developed using established clinical guidelines and validated formulas from recognized medical authorities.
All formulas and clinical interpretations are based on guidelines from the World Health Organization (WHO), Centers for Disease Control (CDC), American Heart Association (AHA), and other recognized medical authorities.
