How many grams are in a cup of lentils?

It depends on the type. A cup of whole green or brown lentils is about 192 grams, while a cup of red split lentils is closer to 200 grams because the smaller split pieces pack more tightly.

Why do lentil types weigh different amounts per cup?

Whole lentils (green, brown, black) leave small gaps between pieces when measured by volume. Split lentils like red lentils are smaller and settle more densely, so a cup holds slightly more weight.

Does this apply to cooked lentils?

No, these values are for dry, uncooked lentils. Cooked lentils absorb water and roughly triple in volume, so a cup of cooked lentils weighs more but represents far less dry product.

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 higher gram result.

Can I convert grams back to cups?

Yes. Divide your gram amount by the density shown for your lentil type (for example, divide by 200 for red lentils) to get the equivalent number of cups.

Lentils Cups to Grams

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

Lentil Converter

Lentil Type Amount in Cups

Result

192 g

≈ 6.8 oz

Quick Reference Table

Cups	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.

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Summary

Lentils vary slightly in weight per cup depending on the type, since split and whole lentils pack differently. This tool converts any cup amount to grams for red, green, brown, and black (beluga) lentils using standard dry-weight densities, and includes a reference table for common measurements so you do not need to run the math yourself.

How it works

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

Use cases

Scale a recipe written in cups to a kitchen scale in grams.
Convert a US recipe to metric for cooking outside the US.
Check how much a bag of lentils weighs before buying.
Portion out lentils by weight for meal prep.
Compare dry weight across red, green, brown, and black lentils.

Frequently Asked Questions

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