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Convert US Gallons to US Quarts

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Measurement

Volume Converter
10 sig. figures
Formula1 US gal ร— 4 = 4 US qt
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About Volume Conversions

Volume trips people up because US customary and imperial units share names but not sizes. A US gallon (3.785 liters) runs about 17% smaller than an imperial gallon (4.546 liters), and the gap carries down into pints, quarts, and fluid ounces. Cooking is where it bites: a British recipe's pint of milk is 568 ml, an American pint only 473 ml. Science sidesteps the mess with metric volume, where 1 mL equals exactly 1 cmยณ. US and imperial variants stay separate below, with exact conversion chains holding precision across the swap.

Quick Conversions

US GallonsUS Quarts
1 US gal4 US qt
2 US gal8 US qt
5 US gal20 US qt
10 US gal40 US qt
25 US gal100 US qt
50 US gal200 US qt
100 US gal400 US qt
250 US gal1000 US qt
500 US gal2000 US qt
1000 US gal4000 US qt
Unit NameSymbolPer 1 US Gallon
Cubic Centimetercmยณ3785.41
Cubic Footftยณ0.133681
Cubic Inchinยณ231
Cubic Metermยณ0.00378541
Imperial Fluid Ounceimp fl oz133.228
Imperial Gallonimp gal0.832674
Imperial Pintimp pt6.66139
LiterL3.78541
MillilitermL3785.41
US CupUS cup16
US Fluid OunceUS fl oz128
US GallonUS gal1
US PintUS pt8
US QuartUS qt4
US TablespoonUS tbsp256
US TeaspoonUS tsp768

Frequently Asked Questions

How do I convert US Gallons to US Quarts?

To convert US Gallons to US Quarts, use the conversion where 1 US Gallon (US gal) = 4 US Quarts (US qt). For example, 1 US Gallon = 4 US Quarts.

What are common US Gallon to US Quart conversions?

Here are common conversions: 1 US Gallons = 4 US Quarts, 5 US Gallons = 20 US Quarts, 10 US Gallons = 40 US Quarts, 25 US Gallons = 100 US Quarts, 50 US Gallons = 200 US Quarts, 100 US Gallons = 400 US Quarts.

When would I need to convert US Gallons to US Quarts?

Volume conversions come up when scaling recipes between metric (milliliters, liters) and US customary units (cups, fluid ounces), calculating fuel tank capacities across regions, and in chemistry and manufacturing where a precise liquid measurement decides the outcome.

How precise are the conversions?

All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.

Sources

Read our full methodology โ†’