How Many Cups in a Gallon?

There are 16 cups in a US gallon. This equals 4 quarts, 8 pints, or 128 fluid ounces.

There are 8 cups in a half gallon (64 fluid ounces).

There are 4 cups in a quart. Since there are 4 quarts in a gallon, 4 × 4 = 16 cups in a gallon.

There are 2 cups in a pint. A pint equals 16 fluid ounces.

No. A UK (Imperial) gallon is larger: 1 UK gallon = 1.2 US gallons. A UK gallon has about 19.2 US cups.

16 Cups

1 US Gallon = 16 US Cups = 128 Fluid Ounces

Easy Memory Trick

"Gallon Guy": 1 Gallon → 4 Quarts → 8 Pints → 16 Cups
Just double each time: 4 → 8 → 16!

Cups

⇄

Gallons

1 Gallon

4 Quarts

8 Pints

16 Cups

Gallons	Quarts	Pints	Cups	Fluid Oz
⅛	½	1	2	16
¼	1	2	4	32
½	2	4	8	64
1	4	8	16	128
2	8	16	32	256
5	20	40	80	640

How many cups in a half gallon?

There are 8 cups in a half gallon. Half of 16 cups = 8 cups. This equals 64 fluid ounces.

How many cups in a quart?

There are 4 cups in a quart. Since there are 4 quarts in a gallon, 4 × 4 = 16 cups per gallon.

How many cups in a pint?

There are 2 cups in a pint. A pint equals 16 fluid ounces.

Is a UK gallon the same as a US gallon?

No! A UK (Imperial) gallon is larger than a US gallon. 1 UK gallon = 1.2 US gallons = approximately 19.2 US cups.

How much water should I drink per day in cups?

The common recommendation is 8 cups (64 oz) per day, which is half a gallon. Some experts recommend up to 1 gallon (16 cups) for active individuals.