How to Use the Food Nutrition Comparison Calculator
This tool lets you compare two foods side by side based on your actual serving size. Enter the nutrition values per 100g from the food label and the amount you plan to eat. The calculator scales the values to your serving and shows the difference in calories, protein, fat, and carbs.
For example, comparing 150g of chicken breast vs. 150g of salmon shows that chicken breast has fewer calories but more protein, while salmon provides more healthy fat. This helps you make smarter food choices for your diet or fitness goals.
You can find per 100g values on the Nutrition Facts label of any packaged food, or look them up in the USDA FoodData Central database.
Frequently Asked Questions
Yes, you can enter different serving sizes for Food A and Food B. This is useful when comparing standard portions that differ by food type.
A negative value in the A−B column means Food B has more of that nutrient. A positive value means Food A has more.