Gallon (US, UK) Conversion Tool - Convert Gallons to Any Unit
Convert Gallons to Other Units
Quick Conversions
Convert Other Units to Gallons
Quick Conversions
Related Volume / Capacity Units
Gallon Conversion Table
This comprehensive gallon conversion table shows how various units relate to US and UK gallons. Use this reference for quick conversions between gallons and other common volume units.
| Conversion | To Unit | Multiplier (US gal) | Multiplier (UK gal) |
|---|---|---|---|
| Gallons to liters | Liters | 3.78541 | 4.54609 |
| Gallons to milliliters | Milliliters | 3785.41 | 4546.09 |
| Gallons to cubic meters | Cubic Meters | 0.00378541 | 0.00454609 |
| Gallons to cubic centimeters | Cubic Centimeters | 3785.41 | 4546.09 |
| Gallons to cubic millimeters | Cubic Millimeters | 3785410 | 4546090 |
| Gallons to quarts | Quarts | 4 | 4 |
| Gallons to pints | Pints | 8 | 8 |
| Gallons to cups | Cups | 16 | 16 |
| Gallons to fluid ounces | Fluid Ounces | 128 | 160 |
| Gallons to tablespoons | Tablespoons | 256 | 320 |
| Gallons to teaspoons | Teaspoons | 768 | 960 |
| Gallons to barrels | Barrels | 0.0238095 | 0.028594 |
| Gallons to bushels | Bushels | 0.107421 | 0.129011 |
| Gallons to pecks | Pecks | 0.429684 | 0.516044 |
| Gallons to cubic inches | Cubic Inches | 231 | 277.419 |
| Gallons to cubic feet | Cubic Feet | 0.133681 | 0.160544 |
| Gallons to cubic yards | Cubic Yards | 0.00495113 | 0.00594595 |
This gallon conversion reference table provides accurate conversion factors for both US and UK gallons to various volume units. All values are based on internationally recognized standards for maximum precision in scientific and engineering applications.
What is a Gallon?
A gallon is a unit of volume used primarily in the United States and the United Kingdom. There are two main definitions in use today: the US gallon and the UK (imperial) gallon. The US gallon is defined as 231 cubic inches (approximately 3.78541 liters), while the UK gallon is defined as 4.54609 liters. Our gallon conversion tool helps you easily convert between gallons and other units. For example, 1 US gallon equals approximately 3.785 liters, while 1 UK gallon equals approximately 4.546 liters.
Difference Between US and UK Gallons
The primary difference between US and UK gallons lies in their definitions and sizes. The US gallon is smaller than the UK gallon. Specifically, 1 US gallon equals 3.78541 liters, while 1 UK gallon equals 4.54609 liters. This means that 1 UK gallon is approximately 20% larger than 1 US gallon. This difference is important when converting between gallons and other units. Our gallon conversion calculator automatically handles these differences for accurate conversions:
- US gallon = 3.78541 liters
- UK gallon = 4.54609 liters
- 1 UK gallon = 1.20095 US gallons
- 1 US gallon = 0.832674 UK gallons
What are Gallons Used For?
Gallons are used in a wide range of applications, particularly in countries that use the US customary or imperial systems. Our gallon conversion tool is essential for accurate measurements in these contexts:
Fuel Measurements
Gasoline is commonly sold in gallons in the United States. For example, a typical car's fuel tank might hold 12-15 gallons (approximately 45-57 liters) of gasoline.
Liquid Storage
Household liquids like milk, water, and cleaning supplies are often measured in gallons. For example, a standard water cooler bottle contains 5 gallons (approximately 19 liters) of water.
Industrial Applications
Chemical manufacturing, food processing, and beverage production often use gallons for bulk liquid measurements. For example, industrial mixing tanks might have capacities of 500-1000 gallons.
Agriculture
Fertilizers, pesticides, and irrigation water are often measured in gallons. For example, a farmer might need to apply 50 gallons (approximately 190 liters) of fertilizer per acre.
Etymology and History
The word "gallon" comes from the Old Northern French "galon." The gallon has its origins in the medieval wine trade, where it was used to measure quantities of wine and beer. The gallon has undergone several definitions throughout history. The original English gallon, known as the "wine gallon," was defined in the 14th century as the volume of 8 pounds of wine. This definition was later refined to the "ale gallon" (282 cubic inches) and the "corn gallon" (268.8 cubic inches).
The modern US gallon is based on the English wine gallon of 231 cubic inches, which was standardized in 1707. The UK gallon, also known as the imperial gallon, was redefined in 1824 as the volume of 10 pounds of distilled water at 62°F, which equals exactly 4.54609 liters. This evolution reflects the development of measurement standards and the need for consistent trade measurements. Understanding the history of gallon measurements is important for accurate conversions between different gallon definitions.
Frequently Asked Questions
What is the difference between US and UK gallons?
The US gallon is smaller than the UK gallon. Specifically, 1 US gallon equals 3.78541 liters, while 1 UK gallon equals 4.54609 liters. This means that 1 UK gallon is approximately 20% larger than 1 US gallon. Our gallon conversion calculator handles these differences automatically for accurate results.
How do I convert gallons to liters?
To convert US gallons to liters, multiply by 3.78541. To convert UK gallons to liters, multiply by 4.54609. For example, 5 US gallons equals 18.92705 liters, and 5 UK gallons equals 22.73045 liters. Our gallon conversion tool provides instant, accurate conversions between gallons and liters.
How many quarts are in a gallon?
There are 4 quarts in both US and UK gallons. This relationship is consistent regardless of whether you're using US or UK measurements. Our gallon conversion calculator can help you convert gallons to quarts and vice versa with precision.
How many pints are in a gallon?
There are 8 pints in both US and UK gallons. This is because 1 quart equals 2 pints, and there are 4 quarts in a gallon (4 × 2 = 8). Use our gallon conversion tool to easily convert between gallons and pints.
How do I convert gallons to cubic meters?
To convert US gallons to cubic meters, multiply by 0.00378541. To convert UK gallons to cubic meters, multiply by 0.00454609. For example, 100 US gallons equals 0.378541 cubic meters, and 100 UK gallons equals 0.454609 cubic meters. Our gallon converter simplifies these conversions.
How many fluid ounces are in a gallon?
There are 128 US fluid ounces in a US gallon and 160 UK fluid ounces in a UK gallon. This difference reflects the different sizes of US and UK gallons and fluid ounces. Our gallon conversion tool accounts for these differences automatically.
Can I convert gallons to metric units?
Yes, our gallon converter easily converts gallons to metric units like liters, milliliters, and cubic meters. Since 1 US gallon equals 3.78541 liters and 1 UK gallon equals 4.54609 liters, you can quickly convert between gallons and metric units using our tool.
Is your gallon conversion tool free to use?
Yes, our gallon conversion calculator is completely free with no registration required. Simply select your gallon type (US or UK), enter your value, select your target unit, and get instant, accurate results. We believe precise measurement conversion should be accessible to everyone, from students to professionals.