Cups to Grams Calculator
Convert US cup measurements to grams with ingredient-specific baking weights.
Use decimals or recipe fractions such as 1 1/2. Ingredient selection controls the grams-per-cup estimate.
Use a package value or a weighed level US cup.
Enter cups and choose an ingredient.
Common Cups to Grams Chart
Quick reference values used by the calculator for one level US cup.
Flour varies with scoop method; weigh when baking needs precision.
Slightly heavier than all-purpose flour in common baking charts.
Lower-density flour, usually lighter per cup.
Granulated sugar is relatively consistent by volume.
Packed brown sugar is denser than loose brown sugar.
Powdered sugar settles and can vary by sifting.
One US cup of butter is roughly 2 sticks.
Close to water, but slightly denser.
Water is the cleanest volume-to-weight reference.
Most cooking oils are lighter than water.
Dense syrups weigh much more than water per cup.
Powders vary by brand and packing.
Use uncooked dry rice values, not cooked rice.
Oat cup weight depends on cut and settling.
Fine table salt is much denser than kosher salt.
Kosher salt varies heavily by brand and crystal shape.
Nut flours vary by grind and settling.
Chip size changes how much fits in a cup.
Examples
Common conversions when adapting American recipes.
Flour
1 1/2 cups all-purpose flour is about 180 g.
Butter
1/2 cup butter is about 114 g, roughly one US stick.
Sugar
1 cup granulated sugar is about 200 g.
Cups to Grams FAQ
Practical notes for recipe conversion and baking precision.
Why does the ingredient change the gram result?
A cup measures volume, not weight. One cup of honey, flour, cocoa, and butter all weigh different amounts, so the ingredient controls the grams-per-cup assumption.
Is this exact enough for baking?
It is a practical estimate for converting recipes. For repeatable baking, weigh ingredients directly because scooping and packing can change cup weights.
Can I use a package weight instead?
Yes. Choose Custom ingredient and enter the grams per US cup from the package, a trusted chart, or your own measured cup.