Sugars & Syrups
Convert ounces of brown sugar (packed) to cups
One ounce of brown sugar (packed) weighs about 0.133 cup, and half a ounce comes to roughly 0.067 cup. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 oz of brown sugar (packed) =
0.133 cup
About 1/8 cup in recipe notation
- ml
- 31.5
- tbsp
- 2.13
Brown Sugar (packed): 213 g per US cup · FAO / INFOODS density database. Recipes assume firmly packed brown sugar. Loosely spooned it drops to roughly 145 g per cup — a 30% difference.
Full brown sugar (packed) chart →Brown Sugar (packed) at a glance
Every number on this page comes from a single figure: 213 grams per US cup (FAO / INFOODS density database).
- 1 cup
- 213 g
- 1 tablespoon
- 13.3 g
- 1 teaspoon
- 4.44 g
- 1 cup in ounces
- 7.51 oz
- 100 g in cups
- 0.469 cups
- Density
- 0.90 g/ml
ounces to cups chart for brown sugar (packed)
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Ounces (weight) | Cups (US) | Tablespoons (US) | Millilitres |
|---|---|---|---|
| 0.5 oz | 0.067 cup | 1.06 tbsp | 15.7 ml |
| 1 oz | 0.133 cup | 2.13 tbsp | 31.5 ml |
| 2 oz | 0.266 cup | 4.26 tbsp | 63 ml |
| 3 oz | 0.399 cup | 6.39 tbsp | 94.5 ml |
| 4 oz | 0.532 cup | 8.52 tbsp | 126 ml |
| 5 oz | 0.665 cup | 10.6 tbsp | 157 ml |
| 6 oz | 0.799 cup | 12.8 tbsp | 189 ml |
| 8 oz | 1.06 cup | 17 tbsp | 252 ml |
| 12 oz | 1.6 cup | 25.6 tbsp | 378 ml |
| 16 oz | 2.13 cup | 34.1 tbsp | 504 ml |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat brown sugar (packed) as 213 g per US customary cup, which works out to 0.900 g/ml. From there:
- Your ounces figure is converted into millilitres or grams using standard unit sizes (oz = 28.3 g).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 1/2 cups.
Measuring brown sugar (packed) accurately
Recipes assume firmly packed brown sugar. Loosely spooned it drops to roughly 145 g per cup — a 30% difference.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many cups are in 1 ounce of brown sugar (packed)?
1 ounce of brown sugar (packed) is 0.133 cup. This is based on a density of 213 g per US cup.
How many cups are in 2 ounces of brown sugar (packed)?
2 ounces of brown sugar (packed) is 0.266 cup, and 0.067 cup for half a ounce.
How much is 100 g of brown sugar (packed) in cups?
100 g of brown sugar (packed) is about 1/2 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for brown sugar (packed)?
Recipes assume firmly packed brown sugar. Loosely spooned it drops to roughly 145 g per cup — a 30% difference.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.