There are 4 quarts in 1 gallon. This simple rule is used in cooking, baking, cleaning, gardening, fuel measurement, and everyday liquid conversions.
To convert gallons to quarts, multiply the number of gallons by 4. To convert quarts to gallons, divide the number of quarts by 4.
1 Gallon Equals 4 Quarts (Drawing)
Gallon to Quart Calculator
Use this calculator to quickly convert gallons to quarts or quarts to gallons.
The Simple Answer
A gallon contains 4 quarts. That means every time you have 1 gallon of liquid, you have the same amount as 4 quarts.
For example, if you have 3 gallons, you multiply 3 by 4. The answer is 12 quarts.
Quick Conversion Examples
Gallon to Quart Conversion Chart
This chart shows the most common gallon to quart conversions.
| Gallons | Quarts |
|---|---|
| 1 gallon | 4 quarts |
| 2 gallons | 8 quarts |
| 3 gallons | 12 quarts |
| 4 gallons | 16 quarts |
| 5 gallons | 20 quarts |
| 10 gallons | 40 quarts |
Quart to Gallon Conversion Chart
If you already know the number of quarts, divide by 4 to find the number of gallons.
| Quarts | Gallons |
|---|---|
| 4 quarts | 1 gallon |
| 8 quarts | 2 gallons |
| 12 quarts | 3 gallons |
| 16 quarts | 4 gallons |
| 20 quarts | 5 gallons |
| 40 quarts | 10 gallons |
Why Are There 4 Quarts in a Gallon?
In the US customary measurement system, liquid volume is divided into smaller units. A gallon is larger than a quart, and each gallon is made of exactly 4 quarts.
You can think of it like this:
| Unit | Relationship |
|---|---|
| 1 gallon | 4 quarts |
| 1 quart | 2 pints |
| 1 pint | 2 cups |
| 1 cup | 8 fluid ounces |
Authoritative reference: the NIST guide to units of measurement documents the US customary system and conversions.
How to Convert Gallons to Quarts
To convert gallons to quarts, multiply the number of gallons by 4.
Example 1
If you have 2 gallons, the calculation is:
Example 2
If you have 6.5 gallons, the calculation is:
How to Convert Quarts to Gallons
To convert quarts to gallons, divide the number of quarts by 4.
Example 1
If you have 12 quarts, the calculation is:
Example 2
If you have 30 quarts, the calculation is:
Common Uses for Gallon and Quart Conversions
Knowing how many quarts are in a gallon is useful in many everyday situations. You may need this conversion when reading a recipe, measuring water, mixing paint, preparing drinks, or buying liquid products. While you are at it, lock down your account passwords with our Free Password Strength Checker.
- Cooking large recipes (need to mail a recipe card too? see our guide on how to address an envelope)
- Measuring milk, water, oil, or juice
- Converting recipe measurements
- Mixing cleaning solutions
- Measuring garden liquids
- Understanding product labels
FAQs About Quarts and Gallons
How many quarts are in 1 gallon?
There are 4 quarts in 1 gallon.
How many quarts are in half a gallon?
Half a gallon equals 2 quarts.
How many quarts are in 2 gallons?
2 gallons equal 8 quarts.
How many gallons are in 8 quarts?
8 quarts equal 2 gallons.
Is a quart bigger than a gallon?
No. A gallon is bigger than a quart. One gallon contains 4 quarts.
Are US gallons and Imperial gallons the same?
No. A US gallon and an Imperial gallon are different measurements. This guide uses the US liquid gallon.
Final Answer
There are 4 quarts in a gallon. The easiest way to remember the conversion is simple: multiply gallons by 4 to get quarts, and divide quarts by 4 to get gallons. (For more practical tech how-tos see our pieces on fixing a slow Mac startup and stopping shaky hands in photography.)
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