How much is 4 cups of caster sugar in grams?

Reviewed by Shree • Last checked October 2026 • How we measure
Instant Answer Standard Cup Weight

4 cups of caster sugar weighs 800 grams.

800 grams

≈ 28.22 oz (weight)

Level cup, spooned in (not packed)
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4 cups cup of Caster sugar weighs 800 grams.

800 grams ≈ 28.2 oz

Nearby caster sugar cup measurements

Compare weight conversions for common cup sizes of caster sugar.

Cup Amount Weight (Grams) Weight (Ounces)
1/4 cup 50g 1.8 oz
1/3 cup 67g 2.4 oz
1/2 cup 100g 3.5 oz
2/3 cup 133g 4.7 oz
3/4 cup 150g 5.3 oz
1 cup 200g 7.1 oz
1 1/2 cups 300g 10.6 oz
2 cups 400g 14.1 oz

4 cups of caster sugar in other units

If a recipe calls for 4 cups of caster sugar, here is how that exact quantity converts into other volume and weight measurements:

How to measure caster sugar accurately

Level cup, spooned in (not packed)

Measuring caster sugar by volume using cups can introduce errors up to 20% due to settling, packing pressure, and variations between measuring cup brands. For dependable, professional baking and cooking results, weighing your ingredients in grams with an inexpensive digital kitchen scale eliminates every inconsistency.

Frequently asked questions

How many grams is 4 cups of caster sugar?

4 cups of caster sugar weighs 800 grams (approximately 28.22 ounces).

How many ounces is 4 cups of caster sugar?

4 cups of caster sugar weighs approximately 28.22 ounces (800g).

How many cups of caster sugar is 100 grams?

100 grams of caster sugar is approximately 0.5 cups.

How do you accurately measure 4 cups of caster sugar?

The most accurate way to measure caster sugar is by weight on a digital kitchen scale (800g). If measuring with cups, spoon the ingredient lightly into the measuring cup and level off flat with a knife without packing.

← See the full Caster sugar cups to grams conversion chart