Cups to Grams: Sugar Conversion Guide (All Types)

Convert all types of sugar between cups and grams: white, brown, powdered, caster, and more.

Not all sugars weigh the same per cup. Here's a complete guide to converting between cups and grams for every type of sugar.

Sugar Conversion Table

Sugar Type — 1 Cup (grams) — ½ Cup — ¼ Cup — 1 Tbsp

White Granulated — 200g — 100g — 50g — 12.5g

Brown Sugar (packed) — 220g — 110g — 55g — 13.8g

Brown Sugar (loose) — 145g — 73g — 36g — 9.1g

Powdered/Icing Sugar — 120g — 60g — 30g — 7.5g

Caster (superfine) — 190g — 95g — 48g — 11.9g

Coconut Sugar — 154g — 77g — 39g — 9.6g

Turbinado/Raw Sugar — 220g — 110g — 55g — 13.8g

Muscovado Sugar — 210g — 105g — 53g — 13.1g

Demerara Sugar — 220g — 110g — 55g — 13.8g

Why Brown Sugar is "Packed"

Brown sugar contains molasses, which makes it sticky and clumpy. When a recipe says "packed brown sugar," press it firmly into the measuring cup until there are no air pockets. Unpacked (loose) brown sugar weighs about 25% less per cup.

Substitution Tips

White → Brown: Same weight, but adjust liquid slightly (brown sugar adds moisture)

Granulated → Powdered: Use 1.67× the volume (powdered sugar is lighter per cup)

Any sugar → by weight: Always swap grams 1:1 unless recipe specifically notes otherwise

Next, read How Many Cups is 300 Grams of Sugar?.