How Many Grams in a Cup? (Printable Conversion Chart)
If you’ve ever wondered how many grams in a cup, you’re not alone. This is one of the most common cooking and baking questions. And the tricky part is that the answer isn’t always the same!
In this post, I’ll share with you a complete grams-to-cups conversion chart for the most common pantry ingredients, plus a free printable cheat sheet you can keep in your kitchen.
Unlike milliliters, grams measure weight, not volume, which means the number of grams in a cup changes depending on the ingredient. A cup of flour does not weigh the same as a cup of sugar or oats. That is why measuring by weight is the most accurate way to bake.
Quick Answer: How Many Grams in a Cup?
- 1 US cup flour = ~120 g
- 1 US cup granulated sugar = ~200 g
- 1 US cup butter = 227 g (2 sticks)
- 1 US cup water = 240 g
But that’s just the beginning! Keep scrolling for a complete conversion chart.
Cups to Grams Conversion Chart
| Ingredient | 1 Cup (US) | ½ Cup | ¼ Cup |
|---|---|---|---|
| All-purpose flour | 120 g | 60 g | 30 g |
| Whole wheat flour | 113 g | 56 g | 28 g |
| Granulated sugar | 200 g | 100 g | 50 g |
| Brown sugar (packed) | 220 g | 110 g | 55 g |
| Powdered sugar | 120 g | 60 g | 30 g |
| Butter | 227 g | 113 g | 57 g |
| Cocoa powder | 85 g | 43 g | 21 g |
| Rolled oats | 90 g | 45 g | 23 g |
| Rice (uncooked) | 185 g | 93 g | 46 g |
| Water / milk | 240 g (= 240 ml) | 120 g (= 120 ml) | 60 g (= 60ml) |
Tip: Use a kitchen scale when possible for the most consistent results, especially for baking.
Why Knowing How Many Grams in a Cup Matters
Baking is science and precision matters. Measuring by weight instead of volume:
- Prevents dry or dense cakes from too much flour
- Ensures cookies spread properly (or not too much!)
- Makes it easier to scale recipes up or down
- Helps when using recipes from other countries
This is especially helpful if you’re converting US recipes to metric or vice versa.
Free Printable: Cups to Grams Conversion Chart
Download my free printable cups to grams conversion chart to keep inside a cabinet door or with your baking tools. You’ll never have to Google this mid-recipe again!
Notes from My Kitchen
I switched to weighing my ingredients a few years ago and it completely changed my baking. My cakes started coming out fluffier, my cookies more consistent and I stopped having those random baking “fails” that used to drive me crazy.
But I still like to have a cups to grams chart nearby for when I’m converting older family recipes or when I just don’t feel like pulling out the scale for a quick weeknight bake.
FAQ: How Many Grams in a Cup?
How many grams in 1 cup of flour?
About 120 g (US all-purpose flour, spooned & leveled).
How many grams in 1 cup of sugar?
About 200 g for granulated sugar.
How many grams in 1 cup of butter?
227 g (2 US sticks of butter).
Is 1 cup always 240 g?
Only for water and similar liquids. Dry ingredients will vary by density.
More Useful Conversions You Might Like
Butter Cups to Grams (Printable Chart)
