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300g Sour Cream = 1 ¼ cups + 2 ½ tsp

300 grams of sour cream equals 1 ¼ cups + 2 ½ tsp (1.30 US Customary cups, 1.23 Metric 250 mL cups, 308.6 mL, 20.87 tablespoons, or 10.58 oz) when measured spooned & leveled at a verified density of 230g per US Customary cup.

Exact decimal volume: 1.30 US Customary Cups • 1.23 Metric Cups (250 mL) • 20.87 tbsp • 10.58 oz

Batch
Measuring density
Converted Measure
300 g Sour Cream (spooned & leveled) =
1 ¼ US Cups + 2 ½ tsp
Physical scoop breakdown1.30 cups
1 cup
1/4 cup
2 ½ tsp
Edit either side to reverseSour Cream chart →
Grams
300 g
Ounces
10.58 oz
US Cups
1 ¼ cups + 2 ½ tsp
Metric (250mL)
1.23 c
Tablespoons
20.87 tbsp
Milliliters
308.6 mL

Kitchen note: Test-kitchen baseline uses spooned & leveled (230g/cup). Switching to light sour cream (235g/cup) changes each cup by 5g—use the packing toggle on the scale bench to match your recipe.

Batch Scaling Around 300g Sour Cream

Batch scaling conversion table around 300g of Sour Cream (0.5× to 3× recipe batches in grams, ounces, US cups, and milliliters)
Batch Scale Weight (g / oz) US Cups & Spoons Metric (mL)
Half Batch (0.5×) 150g (5.29 oz) ⅔ cup 154.3 mL
Standard (1×) 300g (10.58 oz) 1 ¼ cups + 2 ½ tsp 308.6 mL
1.5× Batch 450g (15.87 oz) 1 ¾ cups + 3 tbsp + 1 tsp 462.9 mL
Double Batch (2×) 600g (21.16 oz) 2 ½ cups + 1 tbsp + 2 ¼ tsp 617.2 mL
Triple Batch (3×) 900g (31.75 oz) 3 ¾ cups + 2 tbsp + 1 ¾ tsp 925.8 mL

Measuring 300g of Sour Cream in the Kitchen

Because 1 US Customary Cup (236.6 mL) of sour cream weighs 230g when measured spooned & leveled, 300 Grams (300g) translates to 1.30 US cups (1 ¼ cups + 2 ½ tsp). By contrast, using the light sour cream measure (235g/cup — a 5g per-cup shift), 300g occupies 1 ¼ cups + 1 ¼ tsp (1.28 cups).

Without a kitchen scale, measure 1 ¼ cups + 2 ½ tsp (20.87 tablespoons total) using spooned & leveled technique. Scoop into a dry measuring cup, pressing lightly with the back of a spoon to eliminate trapped air pockets, and sweep level.

Source note: USDA FoodData Central #170878 & Daisy Brand technical specification (230g/cup)

Frequently Asked Questions

How many cups is 300 grams of sour cream? ▾

300 grams of sour cream (spooned & leveled, 230g per US cup) equals 1 ¼ cups + 2 ½ tsp (1.30 US Customary Cups, 1.23 Metric 250 mL cups, or 20.87 tablespoons).

Why does sour cream make cakes so moist? ▾

Its acidity breaks down flour proteins for a delicate crumb, while 18% butterfat adds richness without making batter watery.

Why does sour cream separate liquid in the tub? ▾

Syneresis (whey separation) naturally occurs as cultured gel networks relax; simply stir the clear liquid back in.