conversions
Quarts to Gallons
Last updated: June 19, 2026
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.
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.
Answer
1 gal
4 qt = 1 gal
Quarts to Gallons Reference Table
| Quarts (qt) | Gallons (gal) | Description |
|---|---|---|
| 1 qt | 0.25 gal | One quart |
| 2 qt | 0.50 gal | Half of a gallon |
| 4 qt | 1.00 gal | Exactly one gallon |
| 8 qt | 2.00 gal | Exactly two gallons |
| 12 qt | 3.00 gal | Exactly three gallons |
| 20 qt | 5.00 gal | Exactly five gallons |
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).
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