Dairy & Cheese
Convert ounces of sour cream to cups
One ounce of sour cream weighs about 0.118 cup, and half a ounce comes to roughly 0.059 cup. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 oz of sour cream =
0.118 cup
About 1/8 cup in recipe notation
- ml
- 27.9
- tbsp
- 1.89
Sour Cream: 240 g per US cup · USDA FoodData Central. Full-fat and reduced-fat sour cream are close enough to use the same figure.
Full sour cream chart →Sour Cream at a glance
Every number on this page comes from a single figure: 240 grams per US cup (USDA FoodData Central).
- 1 cup
- 240 g
- 1 tablespoon
- 15 g
- 1 teaspoon
- 5 g
- 1 cup in ounces
- 8.47 oz
- 100 g in cups
- 0.417 cups
- Density
- 1.01 g/ml
ounces to cups chart for sour cream
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 | 0.059 cup | 0.945 tbsp | 14 ml |
| 1 oz | 0.118 cup | 1.89 tbsp | 27.9 ml |
| 2 oz | 0.236 cup | 3.78 tbsp | 55.9 ml |
| 3 oz | 0.354 cup | 5.67 tbsp | 83.8 ml |
| 4 oz | 0.472 cup | 7.56 tbsp | 112 ml |
| 5 oz | 0.591 cup | 9.45 tbsp | 140 ml |
| 6 oz | 0.709 cup | 11.3 tbsp | 168 ml |
| 8 oz | 0.945 cup | 15.1 tbsp | 224 ml |
| 12 oz | 1.42 cup | 22.7 tbsp | 335 ml |
| 16 oz | 1.89 cup | 30.2 tbsp | 447 ml |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat sour cream as 240 g per US customary cup, which works out to 1.014 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 3/8 cups.
Measuring sour cream accurately
Full-fat and reduced-fat sour cream are close enough to use the same figure.
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 sour cream?
1 ounce of sour cream is 0.118 cup. This is based on a density of 240 g per US cup.
How many cups are in 2 ounces of sour cream?
2 ounces of sour cream is 0.236 cup, and 0.059 cup for half a ounce.
How much is 100 g of sour cream in cups?
100 g of sour cream is about 3/8 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 sour cream?
Full-fat and reduced-fat sour cream are close enough to use the same figure.
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.