Kitchen Conversions
Cup-to-Gram Ingredient Converter
Turn cups into grams for flour, sugar, butter, oats, nuts, and more. Each ingredient uses its own weight per cup.
Measurement System PreferenceAuto-saved
Currently active across all 60 calculators: US Customary (cups, tbsp, oz, °F, in)
cups
Weight
120 g
Based on 120g per US cup
How to measure: Fluffed, spooned into cup, and leveled with a straight edge. Dipping cup directly can pack up to 140g.
How to use this calculator
- 1Make sure "Cups to Grams" is selected at the top.
- 2Pick your ingredient. Flour, sugar, and butter all weigh different amounts per cup.
- 3Choose US cup (236.6 mL) for American recipes, or Metric cup (250 mL) for Australian, NZ, or Canadian ones.
- 4Enter how many cups the recipe calls for (decimals like 0.75 work), then read the grams.
Tip: Read the "How to measure" note under the result. Scooping flour straight from the bag can add 20% more than spooning it in.
How it's calculated
Grams = Volume in Cups × Ingredient Density (grams/cup)
We do the math at full precision and only round the final answer, so the numbers you see are as close as kitchen measurements allow. The assumptions and limits are listed alongside.
Worked example
Scenario: Converting 2.5 cups of all-purpose flour for a bread loaf.
Inputs2.5 US cups of All-Purpose Flour
Calculation2.5 cups × 120 grams/cup = 300.0 grams
Result300.0 g of all-purpose flour
Common questions
Why does one cup of flour not weigh the same as one cup of sugar?
Flour is light and fluffy with lots of air between the particles, while sugar crystals pack tightly. A spooned and leveled cup of flour weighs about 120 grams; a cup of granulated sugar weighs about 200 grams.