Food weight and portion guide

Walnuts: calories and portions

USDA reference data654kcal per 100 grams

Nuts, walnuts, english

The table uses walnut kernels, excluding the hard shell.

Calculate your portion

Enter 0.1–5,000 g. Exclude inedible skin, stones and bones.

for 30 g:

Calories
196.2 kcal
Protein
4.6 g
Carbohydrate
4.1 g
Fat
19.6 g

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Nutrition by weight

Nuts, walnuts, english
WeightCaloriesProteinCarbohydrateFat
30 g196.24.6 g4.1 g19.6 g
60 g392.49.1 g8.2 g39.1 g
100 g65415.2 g13.7 g65.2 g

Values are scaled from the per-100-g data and rounded. “Calories” means kilocalories (kcal).

Tips for weighing and logging

Weigh the kernels used in a recipe or breakfast; halves are not all the same size.

To calculate manually, multiply your portion weight in grams by 654 and divide by 100. For example, 30 g provides approximately 196.2 kcal.

When logging a photo, check the food, cooking method and estimated portion before saving. A photograph cannot reliably show hidden oil or exact weight.

Sources and calculation method

The record below provides values per 100 g of edible food. One reference variety or brand does not represent every product.Library method and limitations

  1. USDA FoodData Central — SR Legacy — Nuts, walnuts, english · FDC ID: 170187 · SR Legacy Collection, April 2018

Data review and calculation: October 2, 2026. Author: Avocado editorial team. This guide supports food logging; it does not replace personalised advice from a registered dietitian.

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