Granulated sugar Grams to Cups Converter
Convert granulated sugar from grams to cups using ingredient-specific baking measurements.
100 grams of granulated sugar ≈
0.51US cups
About ½ cup
Based on 1 US cup of granulated sugar = 198g
Data last verified: August 4, 2026
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100 grams of Granulated sugar =
0.51US cups
Approximately ½ cup
Based on 1 US cup of Granulated sugar = 198g
1 US cup of Granulated sugar = 198g
Measured spooned level (granulated, uncompacted, based on the US cup / 240 ml)
Granulated sugar grams to cups conversion table
| Grams | Cups |
|---|---|
| 10g | 0.05 cups |
| 15g | 0.08 cups |
| 20g | 0.10 cups |
| 25g | 0.13 cups |
| 30g | 0.15 cups |
| 40g | 0.20 cups |
| 50g | 0.25 cups |
| 60g | 0.30 cups |
| 75g | 0.38 cups |
| 80g | 0.40 cups |
| 100g | 0.51 cups |
| 125g | 0.63 cups |
| 150g | 0.76 cups |
| 200g | 1.01 cups |
| 250g | 1.26 cups |
| 300g | 1.52 cups |
| 500g | 2.53 cups |
Kitchen fraction approximation
Sources & how they compare
| Source | Reported value | Comparable source-cup value | Type | Measurement method | Adopted here | Checked |
|---|---|---|---|---|---|---|
| King Arthur Baking — Ingredient Weight Chart | 198 g/1 source cup (exact volume unknown) | 198g | Direct | spooned level | Adopted | 2026-07-18 |
| USDA FoodData Central — Sugars, granulated (FDC 169655)FDC ID: 169655Backup mirror reference: nutritionvalue.org mirror (backup reference) | 200 g/1 source cup (exact volume unknown) | 200g | Direct | not specified | 2026-08-04 |
A comparable source-cup value only scales a half-cup or tablespoon serving to one source cup. When a source does not state the cup's exact volume, we do not present it as a fixed-milliliter normalization.
Measurement notes
- Granulated sugar pours and settles fairly consistently, so cup measurements are more reliable than flour.
- Spoon sugar into the measuring cup and level off the top with a knife for consistent results.
- Fine or superfine sugar packs slightly denser than standard granulated sugar, so weights can vary by a few grams.
- A kitchen scale removes any guesswork when a recipe needs precise sugar amounts.
Common mistakes
- Not measuring granulated sugar the recommended way — spooned level — is one of the most common sources of error.
- Assuming 1 cup of granulated sugar equals 240g like water — it is actually 198g per US cup.
- Assuming every type of sugar (granulated, brown, powdered) weighs the same per cup.
Related amount conversions
Frequently asked questions
How many cups is 100 grams of granulated sugar?
100 grams of granulated sugar is about 0.51 cups, based on 1 US cup (240 ml) = 198g.
How many grams are in 1 cup of granulated sugar?
1 US cup of granulated sugar is about 198 grams, measured spooned level.
Does 1 cup of granulated sugar weigh the same in a metric cup?
No. A metric cup (250 ml) holds slightly more than a US cup (240 ml), so 1 metric cup of granulated sugar is about 206.3g, compared with 198g in a US cup.
What's the best way to measure granulated sugar accurately?
For the most accurate result, spooned level, and use a kitchen scale when your recipe calls for a precise weight.
Can I convert cups of granulated sugar back to grams?
Yes, use the Cups to Grams tool with granulated sugar selected to convert any cup amount back into grams.
Why does granulated sugar convert differently from other ingredients?
Grams measure weight and cups measure volume, so the conversion depends on how dense granulated sugar is. A cup of granulated sugar weighs 198g, while a denser or lighter ingredient weighs a different amount per cup.
Where do these numbers come from?
See how we measure ingredient density and verify each grams-per-cup value.