Convert Sugar from Ounces to Cup (US)
How many US cups is 1 ounce of sugar?
1 ounce of sugar (granulated sugar) is 0.15 US cups. 2 ounces of sugar is 0.3 US cups. 4 ounces of sugar is 0.59 US cups. 6 ounces of sugar is 0.89 US cups. Use the converter below for any amount.
- These figures use the US cup (240 ml). A metric cup is slightly larger at 250 ml, so it holds a little more. Use the metric cup converter →
- Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
Related Sugar Ingredients
Caster sugar is more finely milled than granulated sugar, so it dissolves faster and is the better choice for meringues and delicate sponges. They are close in weight (225 g vs 200 g per cup); swap 1:1 by volume in most recipes. See what 1 ounce of caster sugar is in US cups.
Brown sugar contains molasses, adding moisture and a caramel flavour that granulated sugar lacks. Packed, it weighs more by cup (220 g vs 200 g), so weigh it when swapping to keep the sweetness and texture on track. See what 1 ounce of brown sugar is in US cups.
Icing sugar is granulated sugar ground to a powder, used for frostings and dusting rather than creaming into batters. It packs lighter (125 g vs 200 g per cup), so the two are not a straight 1:1 swap. See what 1 ounce of icing sugar is in US cups.
Raw sugar is a coarser, less refined cane sugar with larger crystals and a faint molasses taste. It weighs about the same per cup (200 g each) and swaps 1:1 by volume, adding crunch and a subtle caramel note. See our Raw Sugar converter.
Out of sugar? See sugar substitutes →
No scale? The tool below gives a good estimate, but for exact bakes a digital kitchen scale removes the guesswork.
Weigh it exact, get a scaleSugar Measurement Converter
Enter a value and pick your units.
Result
0.15 Cup (US)Sugar Calculators & Baking Tools
Working with sugar? These tools handle the jobs a converter cannot.
- Jam and Marmalade Calculator Check the sugar a batch of preserve needs and how many jars it fills.
- Pan Size Converter Rescale a recipe for a different cake tin size.
- Oven to Air Fryer Converter Match the temperature and time when you swap the oven for an air fryer, fan oven, or slow cooker.
- Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.
Common Sugar Conversions
Here are the most common sugar conversions from ounces to cups (US).
| Ounces | Cups (US) |
|---|---|
| 1 oz | 0.15 cups (US) |
| 2 oz | 0.3 cups (US) |
| 3 oz | 0.44 cups (US) |
| 4 oz | 0.59 cups (US) |
| 5 oz | 0.74 cups (US) |
| 6 oz | 0.89 cups (US) |
| 8 oz | 1.18 cups (US) |
| 10 oz | 1.48 cups (US) |
| 12 oz | 1.77 cups (US) |
For the reverse conversion, see 1 US cup of sugar in ounces.
Frequently Asked Questions
- How many US cups is 1 ounce of sugar?
- 1 ounce of sugar is 0.15 US cups. The conversion is fixed, so 2 ounces is 0.3 US cups and 4 ounces is 0.59 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones. Open the sugar converter
- How many US cups is 2 ounces of sugar?
- 2 ounces of sugar is 0.3 US cups. The conversion is fixed, so 1 ounce is 0.15 US cups and 4 ounces is 0.59 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
- What is 4 oz sugar in US cups?
- 4 ounces of sugar is 0.59 US cups. The conversion is fixed, so 1 ounce is 0.15 US cups and 2 ounces is 0.3 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones.
- What is 6 oz sugar in US cups?
- 6 ounces of sugar is 0.89 US cups. The conversion is fixed, so 1 ounce is 0.15 US cups and 2 ounces is 0.3 US cups. These whole-ounce amounts are the ones recipes call for most with bulk ingredients, and the figure scales in a straight line as you multiply or divide. Use the converter above for any other amount, or the conversion chart on this page for the common ones.