Quarts to Gallons Converter
Convert US quarts to gallons instantly. One US gallon equals exactly 4 US quarts — enter any number of quarts to get gallons, pints, fluid ounces, milliliters and liters.
qt
US gallons — 4 quarts make 1 gallon
- 1
Pints (quarts × 2)
4 × 2 = 81 US quart = 2 pints. - 2
Fluid ounces (quarts × 32)
4 × 32 = 128 - 3
Gallons (quarts ÷ 4)
4 ÷ 4 = 14 quarts make exactly 1 US gallon.
How does this calculator work?
1 US gallon = 4 quarts (exact). Divide quarts by 4 to get gallons, multiply by 2 for pints, by 32 for fluid ounces, or by 946.35 for ml. UK gallons are ~20% larger. All US customary conversions use exact integer ratios.
Formula
How this is calculated
The US gallon and US quart are both units of liquid volume in the US customary system. Their relationship is exact by definition: 1 US gallon = 4 US quarts, so gallons = quarts ÷ 4. The gallon itself is defined as exactly 3.785411784 litres, making 1 US quart = 946.352946 ml exactly.
The calculator converts quarts to gallons and simultaneously provides all other common volume equivalents (pints, fluid ounces, millilitres, litres) using the same chain of exact integer ratios: 1 gallon = 4 quarts = 8 pints = 128 fluid ounces.
Note that these are US customary units. The UK (imperial) gallon is larger — 4.54609 litres — and an imperial quart is 1.136 litres, roughly 20% bigger than a US quart. Fuel, beverages and recipes from different countries may use either system.
Frequently asked questions
There are exactly 4 US quarts in 1 US gallon. So to convert quarts to gallons, divide by 4. Conversely, multiply gallons by 4 to get quarts. The relationship is exact: 1 gallon = 4 quarts = 8 pints = 16 cups = 128 fluid ounces.
A US gallon is 3.785411784 litres; a UK (imperial) gallon is 4.54609 litres — about 20% larger. Both systems define 4 quarts to a gallon, but the quarts are different sizes. A US quart is 946 ml; a UK quart is about 1136 ml.
3 US quarts = 3 ÷ 4 = 0.75 US gallons (three-quarters of a gallon). In metric that is about 2.839 litres.
Also known as
TG we-Calculate Editorial Team. (2026). Quarts to Gallons Converter [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/quarts-to-gallons-converter
TG we-Calculate Editorial Team. "Quarts to Gallons Converter." TG we-Calculate. 2026. https://we-calculate.com/calculator/quarts-to-gallons-converter.
TG we-Calculate Editorial Team, "Quarts to Gallons Converter," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/quarts-to-gallons-converter
@misc{wecalculate_quarts_to_gallons_converter, title = {Quarts to Gallons Converter}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/quarts-to-gallons-converter}}, year = {2026}, note = {TG we-Calculate} }
Did this calculator help you?