Flour from cups to grams
- Input
- 2 US cups of all-purpose flour to grams.
- Working
- All-purpose flour = 120 g per cup, so 2 × 120 = 240.
- Result
- 2 cups flour = 240 g
Cooking Converter
Convert cups to grams and back by ingredient, using published reference weights for flour, sugar, butter and more, in your browser. Runs entirely in your browser — your numbers never leave this device.
All-purpose flour: Cups (US) → Grams
120 g
1 cup of all-purpose flour = 120 g (at 120 g per US cup)
Weights use standard published reference weights per US cup — how full the cup is and how the ingredient is packed (sifted, scooped, spooned) can shift a real cup by 10% or more. For baking that matters, weigh in grams.
How it works
Grams = cups × grams-per-cup for that ingredient (all-purpose flour = 120, granulated sugar = 198, butter = 227); grams per tablespoon = grams per cup ÷ 16
| Ingredient | Grams per US cup | Grams per tablespoon |
|---|---|---|
| All-purpose flour | 120 | 7.5 |
| Granulated sugar | 198 | 12.38 |
| Packed brown sugar | 213 | 13.31 |
| Powdered sugar | 113 | 7.06 |
| Butter | 227 | 14.19 |
| Cocoa powder | 84 | 5.25 |
| Cornstarch | 112 | 7.0 |
| Honey | 340 | 21.25 |
| Milk | 245 | 15.31 |
| Vegetable oil | 218 | 13.63 |
| Rolled oats | 99 | 6.19 |
| Uncooked white rice | 185 | 11.56 |
Cups measure volume and grams measure weight, so there is no single cups-to-grams factor — there is one per ingredient, set by how densely it packs. A US cup is 236.5882365 mL of space; filled with all-purpose flour it holds about 120 g, with granulated sugar about 198 g, and with honey about 340 g. This converter is driven by the per-ingredient reference table printed on this page, which is the substance of the tool rather than a hidden constant.
The table uses standard published reference weights for a US cup, with tablespoons derived as a sixteenth of a cup: flour at 120 g per cup is 7.5 g per tablespoon, and butter at 227 g per cup is 14.19 g per tablespoon. How an ingredient is handled moves the real figure — sifted flour weighs less per cup than scooped flour, and packed brown sugar (213 g) weighs more than the same sugar loose — so treat converted weights as the standard reference, and weigh with a scale when a bake is unforgiving.
Volume-to-volume cooking conversions (cups to millilitres, spoons to millilitres) do not need an ingredient and live on the Volume Converter. This page is for the volume-to-weight step, and for the reverse: a recipe giving 250 g of butter is 250 ÷ 227 = 1.10 US cups if you only have a cup measure.
Worked examples
Sugar from cups to grams
- Input
- 0.75 US cup of granulated sugar to grams.
- Working
- Granulated sugar = 198 g per cup, so 0.75 × 198 = 148.5.
- Result
- 0.75 cup granulated sugar = 148.5 g
Butter from grams to cups
- Input
- 250 g of butter to US cups.
- Working
- Butter = 227 g per cup, so 250 ÷ 227 = 1.1013.
- Result
- 250 g butter = 1.10 US cups
Frequently asked questions
Why is there no single answer for a cup in grams?
Because a cup fixes the volume (236.5882365 mL) and grams depend on density and packing. A cup of cocoa powder is about 84 g while a cup of honey is about 340 g — a fourfold difference. Any converter giving one universal cups-to-grams number is answering for water-like ingredients only.
How many grams are in a cup of flour?
About 120 g for all-purpose flour by the standard reference weight used here, which makes a tablespoon 120 ÷ 16 = 7.5 g. Sifting lowers the weight in a filled cup and scooping from the bag raises it, which is why serious baking recipes give flour in grams in the first place.
How do I convert tablespoons of an ingredient to grams?
Divide its grams-per-cup figure by 16, because a US cup holds 16 tablespoons. Honey is 340 g per cup, so a tablespoon is 340 ÷ 16 = 21.25 g, and 3 tablespoons of cocoa are 3 × (84 ÷ 16) = 3 × 5.25 = 15.75 g.
A recipe says 100 g of flour but I only have cups. What do I use?
Divide by the ingredient's grams per cup: 100 ÷ 120 = 0.833, so about 0.83 US cups — a little under a full cup. For small quantities a spoon measure is more accurate: 100 g is also 100 ÷ 7.5 = about 13.3 tablespoons of flour, which shows why a scale is the better tool here.
Are these the same as Australian or metric cup weights?
No. The reference weights here are for a US cup of 236.5882365 mL. A metric cup is 250 mL, about 5.7% larger, so the same ingredient weighs about 5.7% more per metric cup. If a recipe is written for metric cups, convert its volumes on the Volume Converter first.
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