Weighing ingredients is the most reliable way to bake. A cup of flour can vary by 20% depending on how it is scooped, while 125 g is always 125 g.
How to use it
Choose an ingredient, enter the amount and unit. Type a weight into the result to convert grams back to cups.
How cup weights are defined
Values are typical weights for spooned-and-levelled measures in a US cup (236.6 mL). Packed brown sugar and sifted flour differ, so weigh when precision matters.
Inputs explained
| Field | What to enter |
|---|---|
| Ingredient | Choose one: All-purpose flour, Granulated sugar, Brown sugar (packed), Powdered sugar … |
| Amount | Units: cups (US), tbsp, tsp, mL |
Example values
How the main result changes when Amount changes and everything else stays at the example values above:
| Amount (cups (US)) | Weight (g) |
|---|---|
| 1 | 125 |
| 1.5 | 188 |
| 2 | 250 |
| 2.5 | 313 |
| 3 | 375 |
| 4 | 500 |
Formula
grams = cups × grams per cup (ingredient density)Worked example
2 cups of all-purpose flour at 125 g per cup = 250 g.
Key terms
- US cup
- 236.6 mL; a metric cup is 250 mL.
- Density
- Mass per volume; it differs between ingredients.
- Spoon and level
- Spooning flour into a cup and scraping it flat, rather than scooping.
Frequently asked questions
Why does sugar weigh more than flour per cup?
Sugar crystals pack more densely than flour particles.
Is a UK cup different?
Recipes in the UK and Australia often use a 250 mL metric cup.
Can I convert butter sticks?
One US stick is half a cup, about 113 g.
What formula does the Cups to Grams Converter use?
grams = cups × grams per cup (ingredient density).
Can I work backwards from the result?
Yes. Type the result you want into Weight and the calculator finds the matching amount.