How many cups is 100 grams of walnuts?

100 grams of chopped walnuts is about 0.83 cups, using the common reference figure of 120 grams per cup.

Does this figure apply to whole or halved walnuts?

This tool uses the density for chopped walnuts. Whole walnut halves take up more air between pieces and can weigh slightly less per cup, so treat this as an estimate for whole pieces.

Is this the same as a US cup or a metric cup?

This tool uses the US cup (236.6 ml). A metric cup (250 ml) would hold slightly more grams for the same cup measurement.

Can I convert cups back to grams?

Yes. Multiply your cup amount by 120 to get the equivalent weight in grams.

Why do gram-to-cup conversions vary between sources?

Nut density depends on how finely the walnuts are chopped and how tightly they are packed into the cup. 120 g/cup is a commonly cited baking-reference figure for chopped walnuts.

Walnuts Grams to Cups

Enter a weight in grams to get the equivalent amount of chopped walnuts in US cups.

Walnut Converter

Weight in Grams

Result

1 cup

≈ 4.23 oz

Quick Reference Table

Grams	Cups (chopped walnuts)

Values use 120 grams per US cup (236.6 ml) for chopped walnuts, a commonly cited baking-reference figure. Whole walnut halves may weigh slightly less per cup.

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Summary

Chopped walnuts measure about 120 grams per US cup, since the irregular pieces leave gaps between them when scooped. This tool converts any gram amount to cups using that figure, and includes a reference table for common weights so you do not have to run the math by hand.

How it works

Enter the weight of chopped walnuts in grams.
The tool divides by 120 grams per cup to get the cup amount.
The result updates instantly as you type.
Use the reference table for common gram amounts at a glance.

Use cases

Convert a metric baking recipe listing walnuts in grams to US cups.
Figure out how many cups a packaged weight of walnuts will fill.
Portion walnuts from a bulk bag by cups instead of a scale.
Check pantry stock in cups when a label only lists grams.
Scale a recipe up or down while keeping walnut proportions correct.

Frequently Asked Questions

Last updated: 2026-09-09 · Reviewed by Nham Vu