Food Calorie Calculator
Look up the calories and full nutrition of any food, then adjust the serving size to match exactly what you eat.
Search for a food and select it to see full nutrition facts here, adjustable by serving size.
About the Food Calorie Calculator
This tool lets you look up the calories and full nutrition of almost any food, from whole ingredients to branded and packaged products, then adjust the serving size to match what you actually eat. The numbers come straight from a large food database that combines official USDA data with packaged food records, so what you see is real measured nutrition rather than a rough guess.
I built tools like this because the single most useful skill in nutrition is knowing roughly what is in your food. You do not need to weigh everything forever, but checking a few foods you eat often quickly builds an intuition that lasts.
How to use it
Type a food into the search box and pick the closest match from the results. Then set the quantity and choose a serving size, grams, a cup, a piece, whatever fits, and the calculator scales every value for you: calories, protein, carbs, fiber, sugar, fat, saturated fat, sodium and more. Because it reads the serving sizes provided with each food, the per serving numbers stay accurate.
Why per serving matters
Calories are only meaningful next to a portion. A food can look light per 100 grams but add up fast in a realistic serving, and the reverse is also true. Adjusting the serving here shows you the number that actually applies to your plate, which is far more useful for planning meals, calculating calories in homemade food, or sustaining a targeted calorie deficit. When logging food, consider whether you are looking at as-packaged vs as-prepared calories and review whether to weigh food raw or cooked for maximum tracking consistency.
Companion Research: Read our clinical deep dive on Allulose Total Carbs Vs Total Sugar Nutrition Label for practical nutritional strategies.
Frequently Asked Questions
Where does the calorie data come from?
It comes from a large integrated food database that combines official USDA FoodData Central records with packaged and branded food data. The values are measured nutrition data, not estimates, though packaged products can vary slightly by brand and batch.
Can I change the serving size?
Yes. After selecting a food, set the quantity and pick a serving size from the list. The calculator scales every nutrient to that exact amount, so the calories and macros match the portion you actually eat.
Does it show more than just calories?
Yes. Alongside calories you get protein, carbohydrates, fiber, sugars, fat, saturated fat, cholesterol, sodium and potassium, so you can see the full picture of a food, not just its energy.
Why can I not find a specific branded product?
The database is large but not infinite. If an exact brand is missing, search for the generic food (for example plain Greek yogurt instead of a specific label) and you will usually find a very close match, or try the barcode on the main food database.
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