Cups to Grams Converter

Cups to Grams Converter

Choose an ingredient, enter the amount, and get an accurate weight instantly.

Why cups and grams aren’t interchangeable

A cup is a measure of volume; a gram is a measure of weight. Because ingredients have different densities, one cup of feathery flour weighs about 120 grams while one cup of honey weighs closer to 340. That’s why serious bakers weigh their ingredients — it’s far more accurate than scooping, where packing the cup differently can change the amount by 20% or more.

How to use it

Common ingredient weights (per US cup)

IngredientGrams per cup
All-purpose flour120 g
Granulated sugar200 g
Brown sugar (packed)213 g
Butter227 g
Honey340 g
Cocoa powder85 g
Rolled oats90 g

Want the reasoning in full? Read Cups to Grams, Explained.

Good to know

Frequently asked

Are these weights exact?

They’re careful averages based on standard ingredient densities. Brands and how you pack the cup vary slightly, but for home baking these figures are reliable.

How many grams is one cup of flour?

About 120 grams for all-purpose flour when spooned and leveled. Scooping straight from the bag packs it tighter and can push it to 140 g or more.

Can I convert grams back to cups?

Yes — just choose grams as the unit you’re measuring in, and the cups and tablespoons update automatically.

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