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US gallon to US quart Converter

Type a value — the answer appears instantly. 1 gal = 4 qt.

Reviewed by the OmniCalc teamMethod verified 2026-07-01

From unit

To unit
Result

4 US quarts

= 3.78541 L= 3,785.41 ml

equals 4 US quarts

Formula: qt = gal × 4

US gallon to US quart formula

qt = gal × 4

Convert 5 US gallons to US quarts

  1. Start with 5 US gallons.
  2. Multiply by the conversion factor: 5 × 4 = 20.
  3. So 5 gal = 20 qt.

US gallon to US quart conversion table

US gallon to US quart conversion table
US gallons (gal)US quarts (qt)
0.01 gal0.04 qt
0.1 gal0.4 qt
0.25 gal1 qt
0.5 gal2 qt
1 gal4 qt
2 gal8 qt
3 gal12 qt
4 gal16 qt
5 gal20 qt
6 gal24 qt
7 gal28 qt
8 gal32 qt
9 gal36 qt
10 gal40 qt
15 gal60 qt
20 gal80 qt
25 gal100 qt
30 gal120 qt
40 gal160 qt
50 gal200 qt
75 gal300 qt
100 gal400 qt
250 gal1,000 qt
500 gal2,000 qt
1,000 gal4,000 qt
5,000 gal20,000 qt
10,000 gal40,000 qt

Unit definitions

What is a US gallon?

The US gallon is defined as exactly 231 cubic inches, or 3.785411784 litres. It is the standard unit for fuel, milk, and large liquid quantities in the United States. It is about 20% smaller than the imperial gallon.

What is a US quart?

The US liquid quart is one quarter of a US gallon, about 946.35 millilitres, equal to two US pints. It is common for milk, oil, and other liquids in the United States. Four quarts make a gallon.

Frequently asked questions

How many US quarts are in one US gallon?

One US gallon equals 4 US quarts (1 gal = 4 qt).

How do I convert US gallons to US quarts?

Multiply the value in US gallons by 4. For example, 10 gal × 4 = 40 qt.

Which is bigger — a US gallon or a US quart?

A US gallon is bigger: one US gallon contains 4 US quarts.

Is this US gallon to US quart converter free?

Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.

Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.