Skip to content

Gallons to Quarts Converter

Convert gallons to quarts and quarts to gallons instantly. Bidirectional volume converter with formula and common values.

gal

Quarts

10

qt

2.5 gal = 10 qt

qt = gal × 4

Gallons to Quarts: 1 gal equals 4 qt. To convert gallons to quarts, multiply by 4 (qt = gal × 4). For example, 10 gal = 40 qt.

How to Convert Gallons to Quarts

To convert from gallons to quarts, multiply the value by 4. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Gallons to Quarts: qt = gal × 4
  • Quarts to Gallons: gal = qt ÷ 4

Gallons to Quarts Conversion Chart

Gallons (gal)Quarts (qt)
0.10.4
0.251
0.52
14
28
312
520
1040
2080
25100
50200
100400
2501000
10004000

Understanding the Units

What is a Gallon?

The US liquid gallon equals exactly 3.785411784 liters; the imperial (UK) gallon equals 4.54609 liters.

From the Old Northern French galun, originally a wine measure.

Common contexts: fuel, milk, paint.

What is a Quart?

The US liquid quart equals exactly 946.352946 milliliters, or one quarter of a US gallon.

Common contexts: cooking (US).

Real-World Reference Points

Item Gallons (gal) Quarts (qt)
A milk jug (US)14
Average car gas tank (US)1456

Related

Gallons to Liters Converter

Convert US gallons to liters and liters to gallons instantly with formula and common values.

Cups to Milliliters Converter

Convert cups to milliliters and milliliters to cups. US customary cup conversion.

Fluid Ounces to Milliliters Converter

Convert fluid ounces to milliliters and milliliters to fluid ounces instantly.

Pints to Liters Converter

Convert US pints to liters and liters to pints with formula and examples.

Tablespoons to Milliliters Converter

Convert tablespoons to milliliters and milliliters to tablespoons instantly.

Liters to Gallons Converter

Convert liters to US gallons and gallons to liters instantly.

FAQ

How many quarts are in a gallon?

One US gallon equals exactly 4 US quarts.

How do I convert gallons to quarts?

Multiply the number of gallons by 4. For example, 2.5 gallons × 4 = 10 quarts.

Is a quart a quarter of a gallon?

Yes. The word "quart" comes from the Latin "quartus" meaning fourth. A quart is exactly one-quarter of a gallon.

What is the difference between a US quart and an imperial quart?

A US liquid quart is about 946.353 mL, while an imperial quart is about 1,136.52 mL. This converter uses US measurements.

How many quarts are in 1 gallon?

1 gal equals 4 qt.

How do you convert gallons to quarts?

Multiply the gallon value by 4. Formula: qt = gal × 4.

How many quarts are in 5 gallons?

5 gal = 20 qt.

How do you convert quarts back to gallons?

Use the inverse formula: gal = qt ÷ 4. For example, 1 qt = 0.25 gal.

What is the difference between Gallon and Quart?

The US liquid gallon equals exactly 3.785411784 liters; the imperial (UK) gallon equals 4.54609 liters. The US liquid quart equals exactly 946.352946 milliliters, or one quarter of a US gallon.