Quarts to Gallons Converter
Convert quarts to gallons instantly. Enter US quarts to get gallons, with the factor of 4 and the reverse gallons to quarts direction shown.
Updated 2026-06-14 · Free · No sign-up · Runs privately in your browser
Show the formula & steps
How the Quarts to Gallons Converter Works
This tool converts US quarts to US gallons and back. Both are volume units common in cooking, automotive fluids and household products. One gallon equals exactly 4 quarts, so the conversion is a simple division.
The Formula
Gallons = quarts ÷ 4 Quarts = gallons × 4
The US customary system defines a gallon as 4 quarts, making this exact.
Worked Example
Convert 6 quarts to gallons:
- Gallons = 6 ÷ 4 = 1.5 gallons
A larger amount, 10 quarts:
- 10 ÷ 4 = 2.5 gallons
Going the other way, 3 gallons in quarts:
- Quarts = 3 × 4 = 12 quarts
Quarts to Gallons Quick Reference
| Quarts | Gallons |
|---|---|
| 1 | 0.25 |
| 4 | 1 |
| 6 | 1.5 |
| 8 | 2 |
| 12 | 3 |
How Quarts Fit the Volume System
In US customary units, 4 quarts = 1 gallon, 2 pints = 1 quart, and 2 cups = 1 pint. That makes a gallon equal to 8 pints or 16 cups. These tidy ratios mean you can scale recipes or estimate fluid amounts without a calculator. Note that the UK imperial gallon is larger, so match US units to US measurements.
Frequently asked questions
How many quarts are in a gallon?+
There are 4 US quarts in one US gallon. So 8 quarts equals 2 gallons. To convert quarts to gallons, divide by 4.
How do I convert quarts to gallons?+
Divide the number of quarts by 4. For example, 6 quarts ÷ 4 = 1.5 gallons. To reverse it, multiply gallons by 4 to get quarts.
How many gallons is 6 quarts?+
6 US quarts equals 1.5 gallons. Since a gallon is 4 quarts, 6 quarts is one full gallon plus half of another.
Is a US gallon the same as a UK gallon?+
No. A US gallon is 4 US quarts (about 3.785 liters), while a UK imperial gallon is about 4.546 liters, roughly 20 percent larger. This converter uses US customary units.
How do quarts relate to pints and cups?+
One quart equals 2 pints or 4 cups. So a gallon (4 quarts) contains 8 pints or 16 cups. The units double or quadruple at each step.