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Usefulnutrition calculators for clearer decisions
Turn nutrition questions into useful answers with simple calculators built for speed and clarity.
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59 nutrition calculators
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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
Basal Metabolic Rate Calculator
Estimate your basal metabolic rate (BMR), the number of calories your body burns at rest each day, using the Mifflin-St Jeor equation…
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02
BMR Calculator for Women
Estimate basal metabolic rate for women using age, height, weight, and formula selection. BMR represents the calories your body needs at rest…
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03
BMR Calculator for Men
Calculate basal metabolic rate for men using the Mifflin-St Jeor equation based on age, weight, height, and unit system.
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04
BMR Calculator for Weight Loss
Estimate daily calorie needs for weight loss using basal metabolic rate, activity level, and a calorie deficit. Uses the Mifflin-St Jeor equation…
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05
BMR to TDEE Calculator
Estimate total daily energy expenditure (TDEE) from your basal metabolic rate (BMR) using activity level, exercise sessions, and goal adjustment.
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06
Resting Metabolic Rate Calculator
Estimate resting metabolic rate (RMR) using the Mifflin-St Jeor equation, adjusted for sex. Enter age, weight, height, and sex to calculate the…
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07
Mifflin St Jeor Calorie Calculator
Estimate daily calorie needs using the Mifflin-St Jeor equation with sex, age, weight, height, and activity level. The result gives estimated maintenance…
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08
Harris Benedict Calorie Calculator
Estimate daily calorie needs using the Harris-Benedict equation based on sex, age, weight, height, and activity level. The result shows total daily…
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09
Katch-McArdle Calculator
Estimate basal metabolic rate using the Katch-McArdle formula based on body weight and body fat percentage, then adjust by activity level to…
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10
TDEE Calculator with Body Fat Percentage
Estimate total daily energy expenditure using the Katch-McArdle formula based on weight, body fat percentage, age, and activity level.
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11
Sedentary TDEE Calculator
Estimate total daily energy expenditure for a sedentary lifestyle using age, sex, weight, and height. This calculator uses the Mifflin-St Jeor BMR…
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12
Active TDEE Calculator
Estimate total daily energy expenditure for active adults using the Mifflin-St Jeor BMR equation adjusted by activity level. Enter age, sex, weight,…
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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.
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Add your numbers
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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.