At One Place

US cups to US quarts

1 US cup in US quarts
1 cup = 0.25 qt
qt = cup × 1/4

To convert US cups to US quarts, multiply by 0.25. The table below gives the values people look up most often, and the converter works for any number.

US cups to US quarts table

Common US cup values converted to US quarts.
US cups US quarts
1 cup 0.25
2 cup 0.5
3 cup 0.75
4 cup 1
5 cup 1.25
10 cup 2.5
15 cup 3.75
20 cup 5
25 cup 6.25
30 cup 7.5
40 cup 10
50 cup 12.5
75 cup 18.75
100 cup 25
250 cup 62.5
500 cup 125
1,000 cup 250

How the conversion works

The relationship is qt = cup × 1/4. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

US cup: US legal cup is 240 mL; the customary cup used here is 236.588 mL.

Common questions

How many US quarts are in one US cup?
One US cup equals 0.25 US quarts. qt = cup × 1/4.
How do you convert US cups to US quarts?
Use qt = cup × 1/4. So 10 cup is 2.5 qt.
How many US cups are in one US quart?
One US quart equals 4 US cups, which is the reverse of the conversion above.
Is there more than one kind of US cup?
US legal cup is 240 mL; the customary cup used here is 236.588 mL.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked