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Free nutrition calculators
Usefulnutrition calculators for clearer decisions
Turn nutrition questions into useful answers with simple calculators built for speed and clarity.
Choose a nutrition calculator, enter your numbers, and get an instant result with no account or unnecessary steps.
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197 nutrition calculators
Choose a nutrition calculator and get a clear answer
Start with the question you need to solve. Every published nutrition calculator is collected here automatically, so the newest tools are always easy to find.
01
Intermittent Fasting Weight Loss Calculator
Estimate expected weekly weight loss from intermittent fasting using body weight, daily calorie deficit, fasting schedule, activity level, and consistency.
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02
Calories Burned Calculator
Estimate calories burned during physical activity using body weight, activity duration, activity intensity, and exercise type based on MET values.
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03
Pregnancy Calorie Calculator
Estimate daily calorie needs during pregnancy using age, pre-pregnancy weight, height, pregnancy stage, and activity level. The calculation uses the Mifflin-St Jeor…
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04
Breastfeeding Calorie Calculator
Estimate daily calorie needs while breastfeeding based on baseline maintenance calories, postpartum stage, exclusivity of breastfeeding, number of babies nursed, and average…
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05
Steps to Calories Calculator
Estimate calories burned from walking or running based on total steps, body weight, average step length, and activity intensity. This calculator converts…
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06
Treadmill Calorie Calculator
Estimate calories burned on a treadmill using body weight, workout duration, speed, and incline. This calculator uses a MET-based approach to provide…
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07
Cycling Calories Burned Calculator
Estimate calories burned while cycling based on body weight, ride duration, intensity, and terrain. This calculator uses MET-based energy expenditure to provide…
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08
Running Calories Burned Calculator
Estimate calories burned while running using body weight, duration, pace, incline, and terrain. The calculation uses MET-based energy expenditure adjusted for running…
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09
Walking Calories Burned Calculator
Estimate calories burned while walking based on body weight, walking duration, pace, and incline. The calculation uses a MET-based approach: calories burned…
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10
Calorie Burn Calculator
Estimate calories burned during exercise using body weight, workout duration, activity intensity, and age. This calculator uses a MET-based approach commonly used…
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11
IHOP Nutrition Calculator
Estimate total calories for an IHOP meal by combining pancakes, eggs, breakfast meat, hash browns, and syrup servings.
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12
Chick-fil-A Nutrition Calculator
Estimate total calories for a customized Chick-fil-A meal by combining an entree, side, drink, sauce servings, and dessert item.
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From question to answer in three small steps
Each nutrition calculator is designed to keep the process short, understandable, and useful from the first input to the final result.
Pick the right tool
Choose the nutrition calculator that matches the question or decision in front of you.
Add your numbers
Enter the few details needed for a result tailored to your situation.
Use the result
Review the answer and supporting context, then move forward with more confidence.
Made to be useful
Better nutrition decisions start with clear numbers
A good nutrition calculator should do more than produce a number. It should make the inputs easy to understand, present the result clearly, and help you see what to do next.