Sugar Cups to Grams Calculator
Convert cups of sugar and sweeteners to grams. Granulated sugar is 198 g per cup, packed brown sugar 213 g, powdered sugar 113 g, and honey a heavy 336 g. Pick the sweetener, enter the cups, and the calculator gives grams, ounces and spoon weights.
Sugar cups to grams calculator
How to use the sugar cups to grams calculator
- Choose the sugar or sweetener. Select granulated, brown, powdered, caster, honey, maple syrup and so on.
- Enter the cups. Type the cup amount, for example 0.75 for three-quarters of a cup.
- Select the cup size. US or metric cups are supported, and the tool uses your region by default.
- Read the grams. You see grams and ounces plus the weight of 1 tablespoon and 1 teaspoon, for scaling small amounts.
Sugar weights by type
King Arthur Baking weights per US cup (USDA in brackets where it publishes its own):
| Sweetener | Grams per cup | Ounces |
|---|---|---|
| Granulated white sugar | 198 g (USDA 200 g) | 7 oz |
| Brown sugar, packed | 213 g (USDA 220 g) | 7.5 oz |
| Powdered sugar, unsifted | 113 g (USDA 120 g) | 4 oz |
| Caster (superfine) sugar | 190 g | 6.7 oz |
| Demerara sugar | 220 g | 7.75 oz |
| Turbinado sugar | 180 g | 6.3 oz |
| Coconut sugar | 154 g | 5.4 oz |
| Maple sugar | 156 g | 5.5 oz |
| Honey | 336 g (USDA 339 g) | 11.9 oz |
| Maple syrup | 312 g (USDA 315 g) | 11 oz |
| Molasses | 340 g | 12 oz |
| Corn syrup | 312 g | 11 oz |
| Agave syrup | 336 g | 11.9 oz |
Worked examples
Two cups of packed brown sugar. 2 × 213 = 426 g, which is 15.03 oz.
One cup of honey. 339 g (USDA), 11.96 oz. By tablespoon that is 21.2 g.
Half a cup of powdered sugar. 56.5 g (1.99 oz).
One Australian cup of caster sugar. 250 ml holds 201 g.
Why sugars differ
Granulated sugar crystals are about the same size everywhere, so the weight per cup is consistent. Brown sugar contains molasses and is moister, so it packs to a higher density. Powdered sugar is mostly air between fine particles, so a cup is much lighter. Syrups have no air gaps, and honey, at roughly 1.4 g per ml, is the densest.
Swapping sweeteners
The weights above tell you how much a cup holds, not how sweet it is. Do not substitute honey or syrup for sugar by weight without adjusting the liquid in the recipe, since they add moisture and change browning. For exact conversions of flour see the flour calculator, for grams back into cups the grams to cups calculator, and for spoon amounts the cups to tablespoons converter. Anything else is in the cups to grams calculator.
Frequently asked questions
How many grams are in a cup of sugar?
A US cup of granulated white sugar is 198 g by King Arthur and 200 g by USDA. Many recipes round to 200 g.
How many grams are in a cup of brown sugar?
About 213 g per US cup when firmly packed, according to King Arthur, or 220 g by USDA. Recipes assume brown sugar is packed.
How many grams is a cup of powdered sugar?
About 113 g (4 oz) per cup unsifted by King Arthur, and 120 g per cup by USDA. Sifted icing sugar is lighter and measures slightly less.
How many grams are in a cup of honey?
About 336 g by King Arthur and 339 g by USDA, nearly 70% heavier than a cup of white sugar. This is why honey is usually added at 3/4 the volume when replacing sugar.
What is caster sugar in cups?
Caster (superfine) sugar is 190 g per US cup, slightly lighter than granulated sugar because the crystals are finer and pack differently. Australian cups of 250 ml hold about 201 g.
Can I replace white sugar with honey cup for cup?
Not exactly. Honey is sweeter and adds liquid. A common guideline is to use 3/4 cup honey per cup of sugar and reduce other liquid by about 1/4 cup, but results vary by recipe.
Is a cup of sugar the same weight in the UK?
The sugar is the same, but UK cups are 250 ml, so a metric cup of white sugar is about 209 g. Most UK recipes use grams instead of cups.
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Sources and references
About this calculator
Written and maintained by Rashid Mehmood, founder of CalcTen. The formulas are unit-tested against hand-worked examples, and the content is reviewed whenever product sizes or guidance change. Last updated 14 November 2026. See our editorial policy.
Ingredient weights are averages and vary with brand and how you measure, so weigh ingredients when accuracy matters. Food safety figures follow USDA and FoodSafety.gov guidance, and a food thermometer is the only reliable test of doneness. Read the disclaimer.