How Much Is 4 Quarts of Milk in Ounces?

Converting 4 quarts of milk to ounces gives 137.71 oz. One quart of milk weighs 976g, so 4 quarts is 4 × 976 = 3,904g (137.71 oz). This conversion is specific to milk because each ingredient has a different density.

4 quarts of milk
=
137.71oz
Result using all quart standards info
137.71 oz (US) 165.38 oz (UK Quart)
4 quarts of milk is also
137.71

Formula and Step-by-Step

quarts × 976g/qt ÷ 28.3495g/oz = ounces
  1. Start with 4 quarts of milk
  2. 1 quart of milk = 976g
  3. 4 × 976 = 3,904g
  4. Convert grams to ounces: 3,904 ÷ 28.3495 = 137.71 oz

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Liquid densities vary: oils weigh less per cup than water, while syrups and honey weigh more. This is why ingredient-specific conversions matter even for liquids.

Milk at Different Amounts

How milk scales across common quarts measurements. Your amount (4 quarts) is highlighted.

0.5 qt17.21 oz1 qt34.43 oz1.5 qt51.64 oz2 qt68.85 oz3 qt103.28 oz4 qt137.71 oz

For reference, 4 quarts of milk (3,904g) is close in weight to a gallon of milk (3,900g).

Other Amounts of Milk

Quarts US Ounces UK Quart
0.5 quarts 17.21 oz 20.67 oz
1 quart 34.43 oz 41.35 oz
1.5 quarts 51.64 oz 62.02 oz
2 quarts 68.85 oz 82.69 oz
3 quarts 103.28 oz 124.04 oz
4 quarts 137.71 oz 165.38 oz

Understanding the Units

What is a Quart?

US and UK quarts differ significantly. A US quart is 946 ml while a UK (imperial) quart is 1,137 ml, about 20% larger. Recipes from British cookbooks using quarts will need adjustment for US measuring equipment.

What is an Ounce?

An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.

Frequently Asked Questions

About 137.71 oz, based on milk having a density of 244g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of quarts by 976 (grams per quart for milk), then divide by 28.3495 to convert grams to ounces. For 4 quarts: 4 × 976 = 3,904g, then 3,904 ÷ 28.3495 = 137.71 oz.
For the most accurate results, weigh milk on a kitchen scale. If measuring by volume, use a liquid measuring cup on a flat surface and read the level at eye height.
Temperature has a minimal effect on most cooking liquids. The density of milk changes slightly with temperature, but the difference is usually less than 1-2% between refrigerator and room temperature. This conversion assumes room temperature.