Onions, Raw: How Many Grams in a Cup?

Raw onions are a savory base with sharp sweetness that softens when cooked.

Quick convert

  • US cup = 236.588 mL
  • 1 tbsp = 14.787 mL
  • 1 tsp = 4.929 mL

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Based on the measured density of Onions, Raw (0.676 g/mL). Values rounded; real weight varies by brand, packing and temperature. Full sources in the tool on ChefSolver.

Reference table

Onions, Raw — cups to grams
Cupsg
1/8 cup20
1/4 cup40
1/3 cup53
1/2 cup80
2/3 cup107
3/4 cup120
1 cup160
1 1/2 cups240
2 cups320

Dice for sautés, soups, stews, and burgers, or slice thin for salads and pickles.

FAQ

Should I scoop or spoon-and-level Onions, Raw?
Spoon-and-level for accuracy. Scooping directly from the bag compacts the powder and adds 20–30 g per cup — enough to ruin a tight bake.
Does old Onions, Raw still weigh the same even if it leavens less?
Yes — chemical potency can fade over a year while the gram weight per cup stays constant. The conversion table is still valid; replace the product for fresh rising power.

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