How Many Cups in 1 Gallon? Conversion Guide & Gallon Man Chart

1 US Liquid Gallon equals exactly 16 Cups (4 quarts, 8 pints, 128 fluid ounces, or 3.785 Liters). Complete capacity conversions and kitchen scaling.

Primary answer1 Gallon = 16.0 US Cups

Secondary4 US Quarts • 8 Liquid Pints • 128 Fluid Ounces • 256 Tablespoons

Metric3785.41 Milliliters (3.785 Liters) • 8.34 lbs Water Mass

Cups = Gallons × 16 = 1 × 16 = 16 Cups

Quick conversion matrix

Measurement	Equivalent A	Equivalent B	Equivalent C
1 US Liquid Gallon	16.00 US Cups	4.00 Quarts / 8 Pints	3.785 Liters (128 fl oz)
1/2 US Gallon	8.00 US Cups	2.00 Quarts / 4 Pints	1.892 Liters (64 fl oz)
1/4 US Gallon (1 Quart)	4.00 US Cups	1.00 Quart / 2 Pints	0.946 Liter (32 fl oz)

1 gallon of liquid contains exactly 16 standard measuring cups.

Remember the "Gallon Man" formula: 1 Gallon has 4 Quarts, each Quart has 2 Pints, each Pint has 2 Cups.

1 gallon of pure water weighs 8.34 pounds (3.785 kg).

1 US Liquid Gallon equals exactly 16.0 US customary cups (128 fluid ounces).

In hierarchical terms: 1 Gallon = 4 Quarts = 8 Pints = 16 Cups.

Whether you are making large batches of iced tea, brining turkey, or mixing punch, multiplying by 16 cups per gallon makes scaling simple.