US Quarts to Gallons Converter

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Convert US quarts to US gallons using the imperial relation 4 US quarts = 1 US gallon. 1 quart = 0.25 gallon; 8 quarts = 2 gallons; 16 quarts = 4 gallons. Useful when paint cans, motor-oil bottles or milk cartons in US quarts need to be summed into gallon-level totals for inventory or fuel-economy calculations. Browser-local.

Quart (US)
Gallon (US)

Quart (US) → Gallon (US)

Quick reference table

Quart (US)Gallon (US)
1 qt (US)0.25 gal (US)
2 qt (US)0.5 gal (US)
5 qt (US)1.25 gal (US)
10 qt (US)2.5 gal (US)
25 qt (US)6.25 gal (US)
50 qt (US)12.5 gal (US)
100 qt (US)25 gal (US)

Glossary

US quart

A US liquid quart is exactly 32 US fluid ounces, two US pints or one quarter of a US gallon, equal to about 946.35 ml. Used for milk cartons, paint cans, motor oil and US recipes. Four quarts make a US gallon. The dry quart (≈1.101 L), used historically for produce, is a different unit and not handled here.

US gallon

A US liquid gallon is exactly 231 cubic inches, or 3.785411784 L. It is the everyday US unit for fuel, milk, paint and bulk household liquids. One US gallon contains 4 quarts, 8 pints or 128 US fluid ounces. The UK imperial gallon (≈4.546 L) is about 20 % larger and is a different unit — always check which is meant.

Metric / SI volume

In the metric system, volume is reported in liters (everyday) or cubic meters (industrial), with millilters for fine resolution. The relations are exact powers of ten: 1 m³ = 1,000 L = 1,000,000 ml, and 1 ml = 1 cm³. The metric system is the standard worldwide for science, beverages, fuel in metric countries, and most modern recipes outside the United States.

Imperial / US Customary volume

US customary and UK imperial systems both use gallon, quart, pint and fluid ounce — but with different sizes. The US gallon is 3.785 L (128 US fl oz); the UK imperial gallon is 4.546 L (160 UK fl oz). Cooking units (tsp = 4.93 ml, tbsp = 14.79 ml, cup = 240 ml) follow the US standard in nearly all modern English-language recipes.

Related tools

US Gallons to US Quarts
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