Quart to Gallon (US) Conversion Calculator: Free Online Tool
Convert quarts to US gallons with our free online volume converter.
Quart to Gallon (US) Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Quart).
- The converted value in Gallon (US) will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Volume category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Quart to Gallon (US)
Converting Quart to Gallon (US) involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Quart = 0.25 US gallonsExample Calculation:
Convert 10 quarts: 10 × 0.25 = 2.5 US gallons
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Quart and a Gallon (US)?
The US liquid quart (symbol qt US) is a unit of volume in the United States customary units system. It is equal to one-quarter of a US gallon, which is exactly 57.75 cubic inches or approximately 0.946 liters. It is commonly used for measuring medium quantities of liquids, such as milk, oil, and juices.
The US liquid gallon (symbol gal US) is a unit of volume in the United States customary units system. It is legally defined as 231 cubic inches, which is exactly equal to 3.785411784 liters. It is commonly used for measuring larger quantities of liquids, such as gasoline, milk, and paint.
Note: The Quart is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Gallon (US) belongs to the imperial/US customary system.
History of the Quart and Gallon (US)
The quart, meaning 'quarter part' (of a gallon), shares its history with the gallon. The US liquid quart is derived from the English wine gallon (231 cubic inches), making it distinct from the Imperial quart used elsewhere, which is based on the larger Imperial gallon.
The gallon has ancient roots, evolving from various Roman and medieval units. The US liquid gallon is based on the wine gallon, which was standardized in England during the reign of Queen Anne in 1707 as 231 cubic inches. This definition was adopted by the United States. It differs from the Imperial gallon used in the UK and Canada.
Common Uses for quarts and US gallons
Explore the typical applications for both Quart (imperial/US) and Gallon (US) (imperial/US) to understand their common contexts.
Common Uses for quarts
- US Beverages: Selling milk, juice, and other beverages in the US.
- Automotive: Measuring motor oil.
- Culinary: Cooking and recipe measurements, particularly for liquids.
- Gardening: Gardening (measuring soil, water).
Common Uses for US gallons
- US Fuel: Measuring fuel (gasoline, diesel) in the United States.
- US Beverages: Selling milk and other beverages in large containers in the US.
- Household Liquids: Measuring paint and other household liquids.
- Pools & Water: Pool capacity and water usage measurements in the US.
- Industry: Some industrial applications.
Frequently Asked Questions
Questions About Quart (qt)
How many pints are in a US quart?
There are exactly 2 US liquid pints in 1 US liquid quart.
How many cups are in a US quart?
There are exactly 4 US customary cups in 1 US liquid quart.
Is a US quart the same as an Imperial quart?
No. The US liquid quart (≈ 0.946 L) is smaller than the Imperial quart (≈ 1.136 L).
About Gallon (US) (gal)
Is a US gallon the same as an Imperial gallon?
No. The US gallon (≈ 3.785 L) is smaller than the Imperial gallon (≈ 4.546 L). Always specify which gallon is being used if there's ambiguity.
How many quarts are in a US gallon?
There are exactly 4 US liquid quarts in 1 US liquid gallon.
How many liters are in a US gallon?
1 US liquid gallon is exactly 3.785411784 liters.
Conversion Table: Quart to Gallon (US)
| Quart (qt) | Gallon (US) (gal) |
|---|---|
| 1 | 0.25 |
| 5 | 1.25 |
| 10 | 2.5 |
| 25 | 6.25 |
| 50 | 12.5 |
| 100 | 25 |
| 500 | 125 |
| 1,000 | 250 |