We use Google Analytics to understand how the site is used. Accept to enable analytics cookies, or decline to browse without them. Privacy Policy
There is no single cups-to-grams number — it depends on the ingredient. 1 cup of all-purpose flour weighs 120 g, granulated sugar 198 g and butter 227 g. Pick your ingredient below and the converter multiplies cups by that ingredient's chart weight.
Cups to Grams — All-Purpose Flour
Cooking Converter · weights from the King Arthur Baking ingredient chart (approximate — see the note below the converter)
1 cups of all-purpose flour = 120 g
1 cups × 120 g per cup = 120 g
The full chart — every ingredient on this site at the amounts recipes actually use. Each cell is cups × the ingredient’s grams per cup from the King Arthur Baking chart.
| Ingredient | 1 cup | 250 g in cups |
|---|---|---|
| All-Purpose Flour | 120 g | 2.08 cups |
| Granulated Sugar | 198 g | 1.26 cups |
| Brown Sugar (packed) | 213 g | 1.17 cups |
| Powdered Sugar (confectioners’) | 113 g | 2.21 cups |
| Butter | 227 g | 1.1 cups |
| Cocoa Powder (unsweetened) | 84 g | 2.98 cups |
| Honey | 340 g | 0.74 cups |
| Rolled Oats (old-fashioned) | 89 g | 2.81 cups |
A scale does not care how you filled the cup. Two bakers measuring “1 cup of flour” can easily be 20 grams apart — scooping packs flour down, spooning keeps it loose — and 20 grams is the difference between a tender cake and a dense one. That is why professional and metric recipes give weights, and why converting a volume recipe to grams (once, with a chart like this one) makes it repeatable.
Cup weights come from the King Arthur Baking — Ingredient Weight Chart, the standard reference US bakers use. A cup is a volume, so the weight you actually get depends on how you fill it — scooping flour straight from the bag packs in more than spooning it in and levelling it off, and sifted flour weighs less still. Treat these figures as the chart standard, and weigh with a scale when a recipe is fussy.
If your recipe stays in volumes, these converters handle the metric side — a US cup is about 237 ml, a tablespoon about 15 ml:
A cup measures volume and a gram measures weight, so the answer depends on what is in the cup: 1 cup of all-purpose flour weighs 120 g, granulated sugar 198 g and butter 227 g. Any chart that gives one number for "a cup" without naming the ingredient is guessing. Pick the ingredient and the conversion is exact arithmetic: cups × that ingredient's grams per cup.
120 grams for all-purpose flour, on the King Arthur Baking Ingredient Weight Chart. Spooned-and-levelled, scooped and sifted cups all weigh slightly different amounts — the chart value is the standard reference, and results here are labelled approximate for that reason.
Every weight on this page is from the King Arthur Baking — Ingredient Weight Chart — the chart King Arthur Baking publishes from weighing ingredients in its own test kitchen. The converter and tables compute from those grams-per-cup figures, so they always agree.
Divide the grams by the ingredient's grams per cup — or use the grams-to-cups converter, which does it for all eight ingredients with a full table.
Need the opposite direction? Use the gram to cup Converter to convert gram back to cup.
Browse every tool in this category on the Cooking Converter hub page.