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GramKitchen

Sugars

Granulated sugar: ounce to gram

1 ounce of Granulated sugar = 28 gram — based on a density of 0.845 g/ml.

ounce to gram conversion table
ounce gram
0.5 14
1 28
2 57
3 85
4 113
6 170
8 227
12 340
16 454

Cross-checked density 0.845 g/ml · ±5%

Why the ingredient matters

A cup is a volume, not a weight. Granulated sugar has a density of 0.845 g/ml — different ingredients give different weights for the same cup. That's why generic « cup to gram » charts are wrong by 10–30 %.

How precise is this?

The density used here is sourced and cross-checked. Real-world measures still vary by about ±5% depending on how the cup is filled — sifted, scooped or packed.

Data sources

Frequently asked questions

How many gram is 1 ounce of Granulated sugar?

1 ounce of Granulated sugar equals about 28 gram, using a density of 0.845 g/ml.

Is a US cup the same as a metric cup?

No — a US cup is 236.6 ml, a metric cup 250 ml, an imperial cup 284 ml. This page uses the US cup; the converter lets you switch conventions.

Why do different sites give different answers?

Most charts use one generic density for every ingredient. We use the measured density of Granulated sugar itself — that is the physically correct conversion.

Should I weigh ingredients instead of using cups?

Yes, whenever possible — a scale removes fill-density error entirely, especially for flour and powders.