An official website of the United States government.
Use the DRI Calculator for Healthcare Professionals to calculate daily nutrient recommendations. Access resources that teach people of all ages about food and nutrition.
Research Tools
USDA ARS Human Nutrition Research Roundup
View a selection of current projects from across the six USDA Agricultural Research Service human nutrition research centers.
FoodData Central
Explore the nutrients and components in foods using this USDA database.
Calculators
DRI Calculator for Healthcare Professionals
Calculate daily nutrient recommendations for calories, macronutrients, vitamins, and minerals based on the Dietary Reference Intakes (DRIs) established by the National Academies of Sciences, Engineering and Medicine.
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Interactive Calculators [bcm.edu]
Browse calculators from the USDA/ARS Children's Nutrition Research Center that estimate a child's health status, blood pressure, and body composition.
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Calculating Calories and Nutrients in Meals [hnrca.tufts.edu]
Follow these steps from the Jean Mayer USDA Human Nutrition Research Center on Aging to calculate nutrient content for a variety of meal types.
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Body Weight Planner [niddk.nih.gov]
Calculate personalized calorie and physical activity needs to reach and maintain a goal weight using this planner from the National Institutes of Health.
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Calculate Your Body Mass Index [nhlbi.nih.gov]
Enter your height and weight to obtain your body mass index (BMI) using this tool from the National Institutes of Health.
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Alcohol Calculators [niaaa.nih.gov]
Explore calculators from the National Institutes of Health to help you determine the amount of alcohol and calories in different container sizes.
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Basal Energy Expenditure: Harris-Benedict Equation [med.cornell.edu]
Estimate Basal Energy Expenditure (BEE) using the Harris-Benedict Equation in this calculator from Cornell University.