conversions

Quarts to Gallons

Last updated: June 19, 2026

Blake Boege
Written by Blake Boege · Founder, Calculator Answers

A volume conversion calculator that translates liquid quarts (qt) to US gallons (gal). This tool uses the exact relationship of 4 quarts to 1 gallon, making one quart equal to 0.25 gallons.

Convert quarts to gallons instantly. Read the conversion answers, the mathematical formula, and browse the reference lookup table.

Quick Answer

Convert liquid quarts to gallons. There are exactly 4 quarts in 1 US gallon.

Direct Conversion

Quarts to Gallons

Bidirectional Quarts (qt) and Gallons (gal) Converter

Compute exact conversions between quarts (qt) and gallons (gal).

Bidirectional live updates. Enter a number in either field to convert instantly.

Live Conversion

Answer

1 gal

4 qt = 1 gal

Formulagal = qt conversion
Quarts (qt)4 qt
Gallons (gal)1 gal

Quarts to Gallons Reference Table

Quarts (qt)Gallons (gal)Description
1 qt0.25 galOne quart
2 qt0.50 galHalf of a gallon
4 qt1.00 galExactly one gallon
8 qt2.00 galExactly two gallons
12 qt3.00 galExactly three gallons
20 qt5.00 galExactly five gallons
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Examples

4 qt

1 gal

How it works

To convert quarts (qt) to gallons (gal), perform the following calculation:

Formula

gal = qt ÷ 4

Method

Divide the number of quarts by 4 to get the equivalent volume in gallons.

Understanding Quarts to Gallons Conversions

Quarts and gallons are traditional units of liquid volume in the US customary and British imperial measurement systems. Since a quart is exactly one-quarter of a gallon, converting between them is simple and linear. This is a common conversion used in cooking, automotive fluid changes, and grocery shopping.

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Frequently asked questions

Divide the number of quarts by 4.

There are exactly 4 quarts in a single US gallon.

Divide by 4 (e.g. 16 quarts ÷ 4 = 4 gallons).