Cups to Grams Converter
Convert baking ingredients between cups, tablespoons, teaspoons, and grams using per-ingredient densities.
Based on standard US-cup densities. Scooped-and-leveled flour and sugar can vary by brand and technique, so weigh on a scale for baking that needs precision.
How it works
Pick an ingredient, enter an amount, and choose the unit you have and the unit you want. The converter looks up how many grams a US cup of that ingredient weighs, then does the math through cups as a common unit: 1 cup equals 16 tablespoons and 48 teaspoons, and grams come from the density table below.
Densities vary a lot by ingredient because volume measures the space something takes up, while weight measures the actual substance in it. A cup of flour weighs about 120 grams, but a cup of honey weighs about 340 grams, since honey is dense and flour is full of air pockets. That is also why two cooks who both measure "1 cup of flour" by scooping can end up with noticeably different amounts of flour: how you fill the cup changes the weight even though the volume reads the same.
Say a recipe calls for 2 cups of flour and your scale only shows grams. Set the ingredient to flour, amount to 2, from to cups, to to grams, and you get 240 grams. Going the other way, 100 grams of granulated sugar converts to exactly half a cup. Butter is measured in tablespoons in a lot of recipes; 4 tablespoons of butter comes out to roughly 57 grams, which is one standard stick.
Density reference (grams per US cup)
| Ingredient | Grams per cup |
|---|---|
| Flour | 120 |
| Granulated sugar | 200 |
| Brown sugar | 220 |
| Powdered sugar | 120 |
| Butter | 227 |
| Water | 237 |
| Milk | 245 |
| Honey | 340 |
| Rolled oats | 90 |
| Cocoa powder | 85 |
| Uncooked rice | 185 |
FAQ
Why does flour weigh less than sugar for the same cup?
Flour particles are lighter and hold more air between them than sugar crystals do, so a cup of flour packs in less mass. This is also why baking recipes that specify weight are more reliable than ones that specify cups; a scale removes the scoop-and-level guesswork entirely. Our kitchen scale guide walks through why weight wins for consistency.
Does packed brown sugar use the same density?
The 220 grams per cup figure here assumes firmly packed brown sugar, which is how nearly every recipe means it unless stated otherwise. Loosely spooned brown sugar will weigh noticeably less, so pack it into the cup before leveling if you are converting from a recipe that calls for cups.
Can I convert a flour I don't see listed, like bread flour?
Bread flour, cake flour, and whole-wheat flour all have slightly different densities from all-purpose, though the difference is usually small enough that the all-purpose figure is a reasonable stand-in. See our flour types guide for how each one actually behaves in a recipe.