Ingredient Weight Converter · dairy
Sour Cream: cups to grams
1 cup of sour cream weighs 230 grams. Use the converter below for any other amount, or check the quick-reference table.
By Andrew Flores, Editor and publisher, Nathan Management. Last reviewed .
Density source: USDA FoodData Central, cross-checked against the King Arthur Baking weight chart. How these figures are derived and corrected is documented in our editorial standards.
Sour Cream baseline: 1 cup = 230 g.
Common amounts
| Cups | Tablespoons | Grams | Ounces (weight) | Milliliters |
|---|---|---|---|---|
| 1/4 cup | 4.0 | 58 g | 2.03 oz | 59 mL |
| 1/3 cup | 5.3 | 77 g | 2.70 oz | 79 mL |
| 1/2 cup | 8.0 | 115 g | 4.06 oz | 118 mL |
| 2/3 cup | 10.7 | 153 g | 5.41 oz | 158 mL |
| 3/4 cup | 12.0 | 173 g | 6.08 oz | 177 mL |
| 1 cup | 16.0 | 230 g | 8.11 oz | 237 mL |
| 1.5 cups | 24.0 | 345 g | 12.17 oz | 355 mL |
| 2 cups | 32.0 | 460 g | 16.23 oz | 473 mL |
| 3 cups | 48.0 | 690 g | 24.34 oz | 710 mL |
| 4 cups | 64.0 | 920 g | 32.45 oz | 946 mL |
Spoon weights
Derived from the same 230 g per cup — a US tablespoon is 1/16 of a cup and a teaspoon is 1/48.
| Amount | Grams |
|---|---|
| 1 tablespoon | 14 g |
| 1 teaspoon | 4.8 g |
| 1/2 teaspoon | 2.4 g |
| 1/4 teaspoon | 1.2 g |
Sour Cream at a glance
- Fat
- 18% minimum for full-fat under the US standard of identity
- pH
- around 4.5 — acidic enough to activate baking soda
- 8 oz container
- about 1 cup (227 g)
What a cup of sour cream actually weighs
The published 230 g assumes one specific way of filling the cup. Here is what the same cup weighs under the other common handling methods and product forms, and how far off the recipe you end up.
| How it was measured | Grams per cup | vs. published | Why |
|---|---|---|---|
| Full-fat, spooned into a dry cup and leveled | 230 g | published figure | The published figure. Sour cream is thick enough to trap air — press it in and level with a spatula. |
| Light / reduced-fat | ~230 g | published figure | Similar weight, less fat, more stabilisers. The weight is not the problem; the heat stability is. |
A tilde (~) marks a working estimate rather than a published figure — it varies with brand, grind, or how hard the cup was packed.
Why measuring sour cream by cup goes wrong
Full-fat sour cream is at least 18 percent fat under the US standard of identity and runs about 230 g per cup. Reduced-fat (light) sour cream weighs nearly the same but contains stabilizers and less fat, so it breaks when heated hard — fine in a dip, unreliable in a cheesecake.
Practical tips for working with sour cream
Sour cream tenderizes baked goods because its acid weakens gluten and its fat lubricates the crumb. A sour-cream coffee cake stays moist for three days at room temperature where the same cake made with milk would be stale by day two. Greek yogurt substitutes 1:1 for sour cream in any baking application with no other adjustment.
Note from this ingredient's record: Full-fat. Reduced-fat sour cream behaves the same in dips but breaks if you bake it above 350 °F.
Substitutions that work — and what they cost you
Plain whole-milk Greek yogurt
Ratio: 1:1
Trade-off: The cleanest swap in baking — same acid, same body. Slightly tangier and marginally drier; add a tablespoon of oil per cup if a cake tightens up.
Crème fraîche
Ratio: 1:1
Trade-off: Higher fat and less acidic, so it will not break in a hot sauce the way sour cream does. Milder flavor.
When sour cream ruins the recipe
| What you see | What went wrong | What to do |
|---|---|---|
| Sauce broke into curds when the sour cream went in | Direct heat on an 18% fat cultured dairy — the proteins coagulate. | Pull the pan off the heat, temper a little hot liquid into the sour cream, then stir it back in. Never let it boil. |
Storing sour cream
Refrigerated, sealed. It keeps a week or two past the printed date; discard at any sign of pink or blue mold rather than scraping. It does not freeze — the emulsion breaks.
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