How many cups is 100 grams of lentils?

100 grams of whole green or brown lentils is about 0.52 cups, while 100 grams of red split lentils is about 0.5 cups because red lentils pack slightly more densely per cup.

Why do lentil types convert to different cup amounts?

Whole lentils (green, brown, black) leave small gaps between pieces when measured by volume, so a given weight fills slightly more cup space. Split lentils like red lentils settle more densely, so the same weight fills less volume.

Does this apply to cooked lentils?

No, these values are for dry, uncooked lentils. Cooked lentils absorb water and roughly triple in volume, so the same gram weight converts to a different cup amount once cooked.

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 give a slightly lower cup result for the same gram weight.

Can I convert cups back to grams?

Yes. Multiply your cup amount by the density shown for your lentil type (for example, multiply by 200 for red lentils) to get the equivalent weight in grams.

Lentils Grams to Cups

Name: Lentils Grams to Cups
Availability: InStock
Author: Nham Vu

Enter a weight in grams and pick a lentil type to get the amount in cups.

Lentil Converter

Lentil Type Weight in Grams

Result

1 cup

≈ 6.77 oz

Quick Reference Table

Grams	Green / Brown	Red (split)	Black (beluga)	French green

Values are for dry, uncooked lentils measured by US cup (236.6 ml). Cooked lentils weigh more per cup because they absorb water during cooking.

Copied!

Summary

Enter a weight in grams and pick a lentil type to get the amount in cups.

How it works

Choose the lentil type from the dropdown.
Enter the weight in grams you want to convert.
The cup amount updates instantly based on that type's density.
Use the reference table for common gram amounts across all four types.

Use cases

Convert a metric recipe written in grams to US cup measurements.
Figure out how many cups a packaged weight of lentils will fill.
Portion out lentils from a bulk bag by cups instead of a scale.
Check pantry stock in cups when a label only lists grams.
Compare cup volume across red, green, brown, and black lentils.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu