What Is Double 1¼ Cups?
How to measure 2½ cups
- With standard cups & spoons: 2 cups + 1/2 cup
- Tablespoon method: count out 40 level tablespoons. A cup is 16 tablespoons, so awkward cup fractions often come out to a clean number of spoons.
- By volume: 591 ml, or 20 fluid ounces — handy if you have a measuring jug.
- By weight (most accurate): see the gram table below for common ingredients.
Here's the math: 1¼ cups is 20 tablespoons. Take double of that and you get 40 tablespoons, which is 2½ cups. Scaling up is forgiving for most ingredients — but see the FAQ below for the ones that aren't.
2½ cups in grams
Volume-to-weight depends on the ingredient — a cup of flour weighs far less than a cup of honey. For 2½ cups:
| Ingredient | 2½ cups weighs about |
|---|---|
| All-purpose flour | 300 g |
| Granulated sugar | 500 g |
| Brown sugar (packed) | 550 g |
| Powdered sugar | 300 g |
| Butter | 568 g |
| Milk | 600 g |
| Water | 593 g |
| Vegetable oil | 545 g |
| Honey | 850 g |
Recipe Doubling Chart: nearby amounts
| Original | Double | Measure it as |
|---|---|---|
| ¾ cup | 1½ cups | 1 cup + 1/2 cup |
| ⅞ cup | 1¾ cups | 1 cup + 3/4 cup |
| 1 cup | 2 cups | 2 cups |
| 1¼ cups | 2½ cups | 2 cups + 1/2 cup |
| 1⅓ cups | 2⅔ cups | 2 cups + 2/3 cup |
| 1½ cups | 3 cups | 3 cups |
| 1⅔ cups | 3⅓ cups | 3 cups + 1/3 cup |
See the full recipe doubling chart →
Frequently asked questions
How many tablespoons is 2½ cups?
2½ cups equals exactly 40 tablespoons. That's often the easiest way to measure it: just count out level tablespoons.
What is double 1¼ cups in milliliters?
Double 1¼ cups is about 591 ml (20 fl oz).
Anything to watch out for when doubling a recipe?
Most ingredients scale straight across, but baking powder, baking soda, salt, and strong spices are best scaled to about ¾ of the multiplied amount, then adjusted to taste. Cooking and baking times also increase less than you'd expect — check early.