Cup to Grams Converter
Convert cooking and baking measurements instantly. Choose your ingredient, pick a conversion direction, enter an amount, and click calculate.
1 cup of all-purpose flour is approximately 120 grams.
Why use a cup grams calculator?
Measuring by cups is quick, but measuring by grams is more accurate. In baking especially, small differences in ingredient amount can change texture, rise, and flavor. A cup grams calculator helps you switch from volume measurements to weight measurements so your recipes are more consistent every time.
This is useful whether you are scaling recipes, converting an old family recipe, or following a recipe from another country. Many professional and modern recipes use grams because scales reduce measuring errors.
How to use this calculator
- Select your ingredient from the dropdown list.
- Choose Cups to Grams if your recipe uses cups and you want grams.
- Choose Grams to Cups if your recipe uses grams and you want cup equivalents.
- Enter the amount and click Calculate.
The result appears instantly below the form. Use reset to clear the input and start a new conversion.
Common grams per cup reference
Different ingredients have different densities, so one cup is not the same weight for everything. Here are common values used in this calculator:
- All-purpose flour: 120 g per cup
- Bread flour: 127 g per cup
- Cake flour: 114 g per cup
- Granulated sugar: 200 g per cup
- Brown sugar (packed): 220 g per cup
- Butter: 227 g per cup
- Water: 236 g per cup
- Milk: 245 g per cup
- Honey: 340 g per cup
Why cup values vary by ingredient
1) Density differences
A cup of honey is much heavier than a cup of oats because honey is denser. That is why each ingredient needs its own conversion factor.
2) Measuring method
Flour can be spooned into a cup, scooped directly, or sifted first. Each method changes how tightly flour is packed, which changes its actual weight.
3) Humidity and storage
Ingredients can absorb moisture from the air. Brown sugar and flour in humid kitchens may weigh slightly more per cup than expected.
Best practices for accurate baking
- Use a digital kitchen scale whenever possible.
- For flour, fluff first and spoon into the cup if a recipe still uses cups.
- Level dry ingredients with a straight edge.
- Pack only when the recipe specifically says “packed,” such as packed brown sugar.
- Record your preferred conversions for your own kitchen habits.
Quick examples
Example A: Cups to grams
If you need 2.5 cups of all-purpose flour, the calculator uses 120 g/cup:
2.5 × 120 = 300 grams
Example B: Grams to cups
If you have 100 grams of cocoa powder and cocoa powder is 85 g/cup:
100 ÷ 85 = 1.18 cups (approximately)
FAQ
Is one cup always 240 grams?
No. A cup is a unit of volume, and grams measure weight. Only water is close to 236 grams per US cup. Most ingredients differ.
Can I use this for cooking and baking?
Yes. It works for both, but baking benefits the most from precise gram measurements.
Are these values exact?
They are standard kitchen approximations used by many recipe publishers. For best precision, use the exact values provided in the recipe source when available.
Final note
If you want better consistency, fewer recipe failures, and easier scaling, converting cups to grams is a great habit. Use this cup grams calculator as a quick kitchen companion whenever you cook or bake.