Cups to Grams Converter

Why weigh instead of scoop?

A cup is a measure of volume, but baking chemistry depends on weight. One cup of all-purpose flour can range from 110 to 145 grams depending on how tightly it is scooped and packed, which is enough to make cookies dry or cake dense. Weighing in grams removes that guesswork so your results are the same every time. This converter uses standard density values (grams per cup) for the most common baking ingredients, from flour and sugar to butter, honey, and cocoa.

How the numbers work

Each ingredient has a fixed weight per cup. For example, all-purpose flour is 125 g per cup, granulated sugar is 200 g, packed brown sugar is 220 g, and butter is 227 g. To convert, we simply multiply that density by the number of cups you enter. Liquids like milk (240 g) and water (237 g) are close to their volume in milliliters, while dense ingredients like honey (340 g) weigh far more per cup.

How to use it

1. Choose your ingredient from the dropdown.
2. Type the number of cups your recipe calls for (decimals like 0.5 or 1.25 are fine).
3. Read the weight in grams instantly below.
4. Switch ingredients or change the cups amount to recalculate on the fly.

Everything runs in your browser, nothing is uploaded, and it works offline once the page has loaded.

FAQ

Are these conversions exact?

They are reliable baking-standard averages, but real ingredients settle and pack differently. Treat the grams as a close estimate rather than a lab measurement.

Why is a cup of honey heavier than a cup of flour?

Honey is dense and packs no air, so it weighs about 340 g per cup, while flour is light and airy at 125 g. Density, not volume, drives the weight.

Can I convert half or quarter cups?

Yes. Enter any decimal, such as 0.5 for a half cup or 0.25 for a quarter cup, and the grams update automatically.

Does brown sugar mean packed?

Yes, the 220 g value assumes firmly packed brown sugar, which is how most recipes call for it.