How Much Sugar Is in Grapes?

A cup of grapes has about 23 g of natural sugar — one of the sweeter fruits, and easy to over-eat by the handful.

High sugar
23g sugar

in 1 cup (151 g) · about 5.5 teaspoons

Per serving
23 g
Per 100 g
16 g
Type
Natural sugar
In teaspoons
≈ 5.5 tsp

A big chunk of a day's sugar in one serving.

Grapes are among the most sugar-dense fruits: a cup runs about 23 g of sugar, and unlike an apple you can pour a whole bowl and keep going without noticing. There's little fibre to slow you down, so portion is the real lever here.

They're still whole fruit — you get water, potassium, and the antioxidant resveratrol in the skins. Just measure a portion instead of grazing the bunch, and be aware that dried into raisins the sugar concentrates dramatically by volume.

Lower-sugar swaps

  • Freeze a measured cup — frozen grapes last longer and feel like a treat
  • Swap to berries when you want to graze a larger volume for less sugar

Frequently asked questions

Are grapes high in sugar?
Yes, relatively. At about 16 g per 100 g they're one of the sweeter fruits, so stick to a measured portion rather than the whole bunch.
Do raisins have more sugar than grapes?
By volume, far more — drying removes the water and concentrates the sugar, so a small handful of raisins packs the sugar of a large bunch of grapes.

Sugar values from USDA FoodData Central; actual amounts vary by brand, ripeness, and recipe. Last updated 2026-07-21.