Nutrition & Diet Calculators
Explore 166 professional-grade calculators for nutrition & diet.
Losertown Calorie Calculator
Free Losertown calorie calculator — estimate BMR, TDEE, and daily calories for weight loss, gain, or maintenance using Mifflin-St Jeor, Harris-Benedict, or Katch-McArdle formulas.
Carb Calculator
Calculate daily carbohydrate needs based on diet type and goals.
Water Intake Calculator
Calculate recommended daily water intake based on weight and activity.
Nutrient Timing Calculator
Optimize meal and nutrient timing around workouts for performance and recovery.
Macro Calculator
Calculate protein, carbs, and fat macros for your diet goals.
Protein Intake Calculator
Find your optimal daily protein intake based on goals and activity.
Glycemic Index Calculator
Look up and compare glycemic index values across common foods.
Omega-3 Intake Calculator
Determine your daily omega-3 needs based on age, weight, and health goals.
Intermittent Fasting Calculator
Calculate fasting and eating windows for 16:8, 5:2, and other IF protocols.
Fat Intake Calculator
Determine healthy daily fat intake in grams and calories.
Glycemic Load Calculator
Calculate the glycemic load of foods to manage blood sugar impact.
Vitamin D Dosage Calculator
Calculate your recommended vitamin D intake based on sun exposure and deficiency risk.
Low-Carb Diet Adherence Score Calculator
Calculate Low-Carb Diet Adherence Score Calculator online with our free tool.
Calorie-to-Protein Ratio Calculator
Calculate calorie-to-protein ratio calculator online with our free tool.
Calorie-to-Nutrient Density Ratio Calculator
Calculate Calorie-to-Nutrient Density Ratio Calculator online with our free tool.
Protein-to-Calorie Ratio Calculator
Calculate Protein-to-Calorie Ratio Calculator online with our free tool.
Ultra-Processed Food Percentage Calculator
Calculate Ultra-Processed Food Percentage Calculator online with our free tool.
Calorie Cycling Calculator
Calculate calorie cycling calculator online with our free tool.
Cutting Calorie Calculator
Calculate cutting calorie calculator online with our free tool.
Bulking Calorie Calculator
Calculate bulking calorie calculator online with our free tool.
Calories Burned by Activity Calculator
Calculate Calories Burned by Activity Calculator online with our free tool.
Daily Calorie Need Calculator
Calculate Daily Calorie Need Calculator online with our free tool.
Calorie Intake Calculator
Calculate calorie intake calculator online with our free tool.
Meal Prep Calorie Calculator
Calculate meal prep calorie calculator online with our free tool.
Pregnancy Calorie Calculator
Calculate pregnancy calorie calculator online with our free tool.
Refeeding Calorie Calculator
Calculate refeeding calorie calculator online with our free tool.
Night Eating Calorie Redistribution Calculator
Calculate Night Eating Calorie Redistribution Calculator online with our free tool.
Portion Size to Calorie Calculator
Calculate Portion Size to Calorie Calculator online with our free tool.
Net Calorie Balance Calculator
Calculate net calorie balance calculator online with our free tool.
Meal Frequency Calorie Split Calculator
Calculate meal frequency calorie split calculator online with our free tool.
Maintenance Calorie Calculator
Calculate maintenance calorie calculator online with our free tool.
Calorie Deficit for Weight Loss Calculator
Calculate Calorie Deficit for Weight Loss Calculator online with our free tool.
Calorie Surplus for Weight Gain Calculator
Calculate Calorie Surplus for Weight Gain Calculator online with our free tool.
Macronutrient Calorie Distribution Calculator
Calculate Macronutrient Calorie Distribution Calculator online with our free tool.
Restaurant Meal Calorie Estimator
Calculate Restaurant Meal Calorie Estimator online with our free tool.
Carb-to-Insulin Ratio Calculator
Calculate Carb-to-Insulin Ratio Calculator online with our free tool.
Blood Glucose-to-Carb Ratio Estimator
Calculate Blood Glucose-to-Carb Ratio Estimator online with our free tool.
Sports Drink Carb Concentration Calculator
Calculate sports drink carb concentration calculator online with our free tool.
Carbohydrate Calculator
Calculate carbohydrate calculator online with our free tool.
Carb Cycling Calculator
Calculate carb cycling calculator online with our free tool.
Low-Carb Threshold Calculator
Calculate low-carb threshold calculator online with our free tool.
Basal Metabolic Rate (BMR) – Katch-McArdle Calculator
Calculate Basal Metabolic Rate (BMR) – Katch-McArdle Calculator online with our free tool.
Carbohydrate Grams Calculator
Calculate Carbohydrate Grams Calculator online with our free tool.
Net Carbs Calculator
Calculate Net Carbs Calculator online with our free tool.
Carbohydrate Loading Calculator
Calculate Carbohydrate Loading Calculator online with our free tool.
Alcohol Calorie Calculator
Calculate the total calories in beer, wine, and spirits per serving.
Daily Calorie Burn Calculator
Estimate total daily calorie expenditure from resting and active metabolism.
Reverse Diet Calculator
Calculate reverse diet calculator online with our free tool.
Zone Diet Block Calculator
Calculate zone diet block calculator online with our free tool.
DASH Diet Score Calculator
Calculate DASH Diet Score Calculator online with our free tool.
Dietary Reference Intake (DRI) Calculator
Calculate Dietary Reference Intake (DRI) Calculator online with our free tool.
Mediterranean Diet Score Calculator
Calculate Mediterranean Diet Score Calculator online with our free tool.
Renal Diet Protein Restriction Calculator
Calculate Renal Diet Protein Restriction Calculator online with our free tool.
DASH Diet Sodium Target Calculator
Calculate dash diet sodium target calculator online with our free tool.
Mediterranean Diet Compliance Score Calculator
Calculate mediterranean diet compliance score calculator online with our free tool.
Dietary Fat Quality Calculator
Calculate dietary fat quality calculator online with our free tool.
Diet Break Maintenance Calculator
Calculate diet break maintenance calculator online with our free tool.
Anti-Inflammatory Diet Score Calculator
Calculate Anti-Inflammatory Diet Score Calculator online with our free tool.
Ketogenic Macro Ratio Calculator
Calculate Ketogenic Macro Ratio Calculator online with our free tool.
Omega-3 to Omega-6 Ratio Calculator
Calculate Omega-3 to Omega-6 Ratio Calculator online with our free tool.
Protein-to-Body-Weight Ratio Calculator
Calculate protein-to-body-weight ratio calculator online with our free tool.
Hydration Status Calculator
Calculate hydration status calculator online with our free tool.
Intermittent Fasting Window Calculator
Calculate intermittent fasting window calculator online with our free tool.
Vitamin C Upper Limit Calculator
Calculate vitamin c upper limit calculator online with our free tool.
Vitamin B12 Deficiency Risk Calculator
Calculate vitamin b12 deficiency risk calculator online with our free tool.
Magnesium Requirement Calculator
Calculate magnesium requirement calculator online with our free tool.
Folate Requirement Calculator
Calculate folate requirement calculator online with our free tool.
Iodine Daily Requirement Calculator
Calculate iodine daily requirement calculator online with our free tool.
Selenium Intake Calculator
Calculate selenium intake calculator online with our free tool.
Manganese Requirement Calculator
Calculate manganese requirement calculator online with our free tool.
Vitamin E Requirement Calculator
Calculate vitamin e requirement calculator online with our free tool.
Niacin Requirement Calculator
Calculate niacin requirement calculator online with our free tool.
Biotin Requirement Calculator
Calculate biotin requirement calculator online with our free tool.
Cholesterol Intake Calculator
Calculate cholesterol intake calculator online with our free tool.
Protein Synthesis Threshold Calculator
Calculate protein synthesis threshold calculator online with our free tool.
Anabolic Window Calculator
Calculate anabolic window calculator online with our free tool.
Added Sugar Daily Intake Calculator
Calculate Added Sugar Daily Intake Calculator online with our free tool.
Anti-Nutrient Load Calculator
Calculate Anti-Nutrient Load Calculator online with our free tool.
Chromium Intake Calculator
Calculate Chromium Intake Calculator online with our free tool.
Daily Water Intake Calculator
Calculate Daily Water Intake Calculator online with our free tool.
Fat Gram Allowance Calculator
Calculate Fat Gram Allowance Calculator online with our free tool.
Oxalate Load Calculator
Calculate Oxalate Load Calculator online with our free tool.
Protein Digestibility-Corrected Amino Acid Score (PDCAAS) Calculator
Calculate Protein Digestibility-Corrected Amino Acid Score (PDCAAS) Calculator online with our free tool.
Relative Energy Deficiency in Sport (RED-S) Risk Score Calculator
Calculate Relative Energy Deficiency in Sport (RED-S) Risk Score Calculator online with our free tool.
Vegan Nutrient Gap Calculator
Calculate Vegan Nutrient Gap Calculator online with our free tool.
Vitamin D Requirement Calculator
Calculate Vitamin D Requirement Calculator online with our free tool.
Water from Food Intake Estimator
Calculate Water from Food Intake Estimator online with our free tool.
Caffeine Safe Intake Calculator
Calculate caffeine safe intake calculator online with our free tool.
Weight Loss Timeline Calculator
Calculate weight loss timeline calculator online with our free tool.
Iron Intake Adequacy Calculator
Calculate iron intake adequacy calculator online with our free tool.
Zinc Intake Calculator
Calculate zinc intake calculator online with our free tool.
Alcohol Metabolism Rate Calculator
Calculate alcohol metabolism rate calculator online with our free tool.
IIFYM Calculator
Calculate iifym calculator online with our free tool.
Non-Exercise Activity Thermogenesis Calculator
Calculate non-exercise activity thermogenesis calculator online with our free tool.
Energy Density Calculator
Calculate energy density calculator online with our free tool.
Chromium Requirement Calculator
Calculate chromium requirement calculator online with our free tool.
Leucine Threshold Calculator
Calculate leucine threshold calculator online with our free tool.
Added Sugar Limit Calculator
Calculate added sugar limit calculator online with our free tool.
Ketosis Threshold Calculator
Calculate ketosis threshold calculator online with our free tool.
Electrolyte Replacement Calculator
Calculate electrolyte replacement calculator online with our free tool.
Pre-Workout Meal Timing Calculator
Calculate pre-workout meal timing calculator online with our free tool.
Basal Metabolic Rate (BMR) – Harris-Benedict Calculator
Calculate Basal Metabolic Rate (BMR) – Harris-Benedict Calculator online with our free tool.
Basal Metabolic Rate (BMR) – Mifflin-St Jeor Calculator
Calculate Basal Metabolic Rate (BMR) – Mifflin-St Jeor Calculator online with our free tool.
Cholesterol Intake Estimator
Calculate Cholesterol Intake Estimator online with our free tool.
FODMAP Load Calculator
Calculate FODMAP Load Calculator online with our free tool.
Fluid Replacement After Exercise Calculator
Calculate Fluid Replacement After Exercise Calculator online with our free tool.
Food Exchange System Calculator
Calculate Food Exchange System Calculator online with our free tool.
Hidden Sugar in Food Calculator
Calculate Hidden Sugar in Food Calculator online with our free tool.
Histamine Intolerance Load Calculator
Calculate Histamine Intolerance Load Calculator online with our free tool.
Iron Intake Requirement Calculator
Calculate Iron Intake Requirement Calculator online with our free tool.
Macro Split Calculator
Calculate Macro Split Calculator online with our free tool.
Meal Prep Batch Size Calculator
Calculate Meal Prep Batch Size Calculator online with our free tool.
Micronutrient Gap Calculator
Calculate Micronutrient Gap Calculator online with our free tool.
Plant-Based Protein Completeness Calculator
Calculate Plant-Based Protein Completeness Calculator online with our free tool.
Processed Food Score Calculator
Calculate Processed Food Score Calculator online with our free tool.
Protein for Muscle Gain Calculator
Calculate Protein for Muscle Gain Calculator online with our free tool.
Protein per Meal Timing Calculator
Calculate Protein per Meal Timing Calculator online with our free tool.
Resting Energy Expenditure (REE) Calculator
Calculate Resting Energy Expenditure (REE) Calculator online with our free tool.
Selenium Requirement Calculator
Calculate Selenium Requirement Calculator online with our free tool.
Vegetarian Iron Absorption Calculator
Calculate Vegetarian Iron Absorption Calculator online with our free tool.
Keto Macro Calculator
Calculate keto macro calculator online with our free tool.
Vegan Protein Adequacy Calculator
Calculate vegan protein adequacy calculator online with our free tool.
Glycemic Index Meal Score Calculator
Calculate glycemic index meal score calculator online with our free tool.
Vitamin A Safe Dose Calculator
Calculate vitamin a safe dose calculator online with our free tool.
Calcium Daily Requirement Calculator
Calculate calcium daily requirement calculator online with our free tool.
Sports Nutrition Calculator
Calculate sports nutrition calculator online with our free tool.
Thermic Effect of Food Calculator
Calculate thermic effect of food calculator online with our free tool.
Satiety Score Calculator
Calculate satiety score calculator online with our free tool.
Copper Intake Calculator
Calculate copper intake calculator online with our free tool.
Phosphorus Requirement Calculator
Calculate phosphorus requirement calculator online with our free tool.
Vitamin K Intake Calculator
Calculate vitamin k intake calculator online with our free tool.
Riboflavin Requirement Calculator
Calculate riboflavin requirement calculator online with our free tool.
Pantothenic Acid Calculator
Calculate pantothenic acid calculator online with our free tool.
Choline Requirement Calculator
Calculate choline requirement calculator online with our free tool.
Nitrogen Balance Calculator
Calculate nitrogen balance calculator online with our free tool.
Trans Fat Intake Limit Calculator
Calculate trans fat intake limit calculator online with our free tool.
Saturated Fat Limit Calculator
Calculate saturated fat limit calculator online with our free tool.
Race Day Fueling Calculator
Calculate race day fueling calculator online with our free tool.
Amino Acid Requirement Calculator
Calculate Amino Acid Requirement Calculator online with our free tool.
B12 Intake Adequacy Calculator
Calculate B12 Intake Adequacy Calculator online with our free tool.
Biotin Intake Calculator
Calculate Biotin Intake Calculator online with our free tool.
Bone Nutrient Score Calculator
Calculate Bone Nutrient Score Calculator online with our free tool.
Caloric Restriction Longevity Estimator
Calculate Caloric Restriction Longevity Estimator online with our free tool.
Daily Iodine Intake Calculator
Calculate Daily Iodine Intake Calculator online with our free tool.
Daily Protein Requirement Calculator
Calculate Daily Protein Requirement Calculator online with our free tool.
Electrolyte Balance Calculator
Calculate Electrolyte Balance Calculator online with our free tool.
Energy Availability Calculator
Calculate Energy Availability Calculator online with our free tool.
Glycemic Index of Meal Calculator
Calculate Glycemic Index of Meal Calculator online with our free tool.
Gut Health Fiber Score Calculator
Calculate Gut Health Fiber Score Calculator online with our free tool.
Ketone Production Estimator
Calculate Ketone Production Estimator online with our free tool.
Magnesium Intake Calculator
Calculate Magnesium Intake Calculator online with our free tool.
Nutrient Density Score Calculator
Calculate Nutrient Density Score Calculator online with our free tool.
Nutrient Timing Window Calculator
Calculate Nutrient Timing Window Calculator online with our free tool.
Pantothenic Acid Requirement Calculator
Calculate Pantothenic Acid Requirement Calculator online with our free tool.
Phytate Content Impact Calculator
Calculate Phytate Content Impact Calculator online with our free tool.
Post-Workout Recovery Nutrition Calculator
Calculate Post-Workout Recovery Nutrition Calculator online with our free tool.
Pre-Workout Nutrition Timing Calculator
Calculate Pre-Workout Nutrition Timing Calculator online with our free tool.
Thermic Effect of Food (TEF) Calculator
Calculate Thermic Effect of Food (TEF) Calculator online with our free tool.
Total Daily Energy Expenditure (TDEE) Calculator
Calculate Total Daily Energy Expenditure (TDEE) Calculator online with our free tool.
Vitamin C Intake Adequacy Calculator
Calculate Vitamin C Intake Adequacy Calculator online with our free tool.
Weight Loss Rate Calculator
Calculate Weight Loss Rate Calculator online with our free tool.
Daily Fiber Intake Calculator
Calculate your recommended daily fiber intake based on age and calorie needs.
Caffeine Intake Calculator
Track daily caffeine intake from coffee, tea, and supplements with safe limits.
Sodium Intake Calculator
Estimate daily sodium needs and flag excess intake for heart health.
Potassium Intake Calculator
Calculate daily potassium requirements for blood pressure and muscle health.
Meatless Diet Impact Calculator
Calculate the environmental and health impact of reducing meat consumption.