Yogurt, Plain, Whole Milk: How Many Grams in a Cup?

Plain whole milk yogurt is produced by culturing whole milk with live bacteria (Lactobacillus bulgaricus and Streptococcus thermophilus) until it thickens and acidifies. At 1.036 g/ml, it is slightly denser than the milk it was made from (1.031 g/ml) — fermentation slightly increases the density by consuming some lactose and producing lactic acid. A cup weighs approximately 245 g; a tablespoon weighs about 15.3 g. Unlike Greek yogurt (which is strained to remove whey and becomes denser — typically 1.05–1.10 g/ml), regular whole milk yogurt retains its liquid whey and pours almost like a thick liquid. Used in marinades, dressings, dips, baked goods, and as a base for tzatziki and raita.

Quick convert

  • US cup = 236.588 mL
  • 1 tbsp = 14.787 mL
  • 1 tsp = 4.929 mL

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Based on the measured density of Yogurt, Plain, Whole Milk (1.036 g/mL). Values rounded; real weight varies by brand, packing and temperature. Full sources in the tool on ChefSolver.

Reference table

Yogurt, Plain, Whole Milk — cups to grams
Cupsg
1/8 cup31
1/4 cup61
1/3 cup82
1/2 cup123
2/3 cup163
3/4 cup184
1 cup245
1 1/2 cups368
2 cups490

Yogurt varieties comparison (1 cup)

Typeg / cupNotes
Plain whole-milk yogurt244 gDensity 1.03 g/mL
Plain Greek yogurt (strained)241 gDensity 1.02 g/mL, strained
Low-fat plain yogurt245 gDensity 1.036 g/mL
Skim-milk plain yogurt245 gDensity 1.036 g/mL
Whole-milk plain yogurt (variant)245 gDensity 1.036 g/mL

FAQ

How is plain whole milk yogurt different from Greek yogurt in terms of density?
Regular whole milk yogurt (1.036 g/ml, ~245 g/cup) is less dense than Greek yogurt, which is strained to remove most of the liquid whey — resulting in a much thicker product at approximately 1.05–1.10 g/ml (roughly 250–260 g/cup). If your recipe specifies Greek yogurt, do not assume regular yogurt will yield the same weight per cup.
Can I substitute plain whole milk yogurt for buttermilk by weight in baking?
They have similar densities (yogurt 1.036 g/ml vs. buttermilk 1.036 g/ml) and both are acidic, so weight-for-weight they are structurally compatible in baking. Thin yogurt by adding 2–3 tablespoons of water per cup to match buttermilk's viscosity. The fermentation by-products are similar, so leavening reactions with baking soda work comparably.
Does the yogurt temperature affect its weight per cup?
Negligibly. Cold yogurt is slightly more viscous and may pack marginally more firmly into a measuring cup, but the density difference between refrigerator temperature (4°C) and room temperature (20°C) is less than 0.5% for yogurt — under 1 g per cup. For precision baking, use a scale regardless of temperature.

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