How many grams are in a cup of black beans?

It depends on the state. A cup of dry black beans is about 194 grams, and a cup of cooked (boiled and drained) black beans is about 172 grams.

Why do dry and cooked black beans weigh different amounts per cup?

Cooking makes black beans absorb water and swell, so the same dry weight takes up more volume once cooked. A cup measured after cooking holds fewer beans by weight than a cup measured dry.

How much dry black beans do I need for a cup of cooked black beans?

Roughly a third to a half cup of dry black beans yields about one cup of cooked beans after soaking and boiling, since they roughly double to triple in volume.

Is canned the same as cooked black beans?

They are close. Canned black beans are already cooked and packed in liquid, so a drained cup weighs close to the cooked figure used here, though it can vary a few grams by brand.

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.

Black Beans Cups to Grams

Name: Black Beans Cups to Grams
Availability: InStock
Author: Nham Vu

Enter a number of cups and pick dry or cooked to get the weight of black beans in grams.

Black Bean Converter

Black Bean State Amount in Cups

Result

194 g

≈ 6.84 oz

Quick Reference Table

Cups	Dry	Cooked

Values are measured by US cup (236.6 ml). Cooked black beans weigh less per cup than dry black beans because cooking swells the beans and increases their volume relative to their dry weight.

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Summary

Enter a number of cups and pick dry or cooked to get the weight of black beans in grams.

How it works

Choose the black bean state from the dropdown: dry or cooked.
Enter the number of cups you want to convert.
The gram weight updates instantly based on that state's density.
Use the reference table for common cup amounts across both states.

Use cases

Scale a chili or soup recipe written in cups to a kitchen scale in grams.
Convert a US recipe to metric for cooking outside the US.
Figure out how much dry black beans to soak to reach a target cooked weight.
Check how much a serving of cooked black beans weighs for a meal plan.
Portion out black beans by weight for batch cooking or meal prep.

Frequently Asked Questions

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