Grams to Cups Converter
90 grams of all-purpose flour is 0.72 cups, but 90 grams of sugar is only 0.45 cups. This grams to cups converter handles the difference automatically, because a cup is a volume and a gram is a weight, and every ingredient packs a different weight into the same cup. Pick your ingredient, enter the amount, and convert in either direction.
Quick answer
Grams measure weight and cups measure volume, so the conversion depends on the ingredient's density.
Result
0.72 cups
Grams
90
Cups
0.72
Grams per cup
125
What this tells you
- •Grams measure weight and cups measure volume, so the conversion depends on the ingredient's density.
- •A US cup of all-purpose flour weighs about 125 g, granulated sugar about 200 g, and honey about 340 g.
- •To convert grams to cups, divide the grams by the ingredient's grams-per-cup value.
- •To convert cups to grams, multiply the cups by the same value.
How to Use
- 1Choose your ingredient from the list.
- 2Enter the amount you have.
- 3Pick the direction, grams to cups or cups to grams.
- 4Read the converted amount, with the grams-per-cup constant shown so you can check the math.
How It Works
Formula
cups = grams / grams per cupEach ingredient has a measured weight per US cup (240 ml). All-purpose flour runs about 125 g per cup, so 90 g of flour is 90 / 125 = 0.72 cups. Sugar is denser at 200 g per cup, so the same 90 g fills only 0.45 cups. The constants here follow King Arthur Baking and USDA averages for spooned-and-leveled measuring.
Calculation note: values are processed in the order shown above, using the current input units.
Worked Examples
90 grams of flour to cups
Divide 90 by flour's 125 g per cup. That is just under three quarters of a cup.
200 grams of sugar to cups
Granulated sugar weighs almost exactly 200 g per cup.
2 cups of milk to grams
Milk weighs about 244 g per cup, so 2 cups is 488 g.
Grams per Cup by Ingredient
How much one US cup of each ingredient weighs.
| Ingredient | Grams per cup |
|---|---|
| All-purpose flour | 125 |
| Granulated sugar | 200 |
| Brown sugar (packed) | 220 |
| Powdered sugar | 120 |
| Butter | 227 |
| Milk | 244 |
| Water | 236.6 |
| Honey | 340 |
| Rolled oats | 90 |
| Cocoa powder | 100 |
Common mistakes
- Using one conversion for every ingredient. 100 g of oats is over a cup, while 100 g of honey is under a third of a cup.
- Scooping flour with the measuring cup. That compacts it up to 20 percent heavier than the spooned-and-leveled weight these constants assume.
- Mixing cup standards. A US cup is 240 ml, an Australian cup is 250 ml, and an old UK cup is 284 ml.