Gallon to Liter Calculator - Gallons to Liters and Gallon to Litre
Use this gallon to liter calculator for instant gal to l conversion. Toggle between US liquid gallon, US dry gallon, and UK imperial gallon to get accurate gallons to liters and gallons to litres values for water gallon to liter conversion, gas tank capacity gallons to liters, and other liquid measurement needs.
Mode: Gallon to Liter conversion.
Converted Value
Liters / Litres
Back to From Unit
US quarts
US fluid ounces (fl oz)
Milliliters (mL)
Formula
High-Volume Specific Conversions (US Liquid)
| Keyword | Conversion |
|---|---|
| half a gallon to liters | 1.892 liters |
| 1 gallon to liters | 3.785 liters |
| 2 gallons to liters | 7.571 liters |
| 3 gallons to liters | 11.356 liters |
| 5 gallons to liters | 18.927 liters |
| 10 gallons to liters | 37.854 liters |
| 50 gallons to liters | 189.271 liters |
Gallon to Liter Conversion Chart Printable (1-100)
| Input | Result | System |
|---|
Gallon to Liter Conversion Formula
Formula: liters = gallons x factor. Use 3.785411784 for US liquid, 4.54609 for imperial, and 4.40488377086 for US dry gallons. This covers us gallon to liter, uk gallon to liter, imperial gallon to liters, and dry gallon to liters while matching informational search intent for quick conversion.
Difference between UK and US gallon to liter: the imperial gallon is larger, so the same gallon value gives more liters in UK mode. Related LSI topics include volume conversion, liquid measurement, metric system, imperial system, conversion table, quarts to liters, ounces to liters, and fluid ounces.
FAQ
How many liters are in 1 gallon?
A US liquid gallon is 3.785 liters and an imperial gallon is 4.546 liters. Results differ because they are not the same gallon unit. Always select the right system when converting milk, water, fuel, or tank capacity data.
Is 4 liters the same as 1 gallon?
No. Four liters is close but not exact. It is slightly above one US gallon and below one imperial gallon. If precision matters, use the calculator and avoid rounding one gallon to exactly four liters.
How many liters are in a US gallon vs Imperial gallon?
US liquid gallon: 3.785 liters. Imperial gallon: 4.546 liters. Since imperial gallons are larger, gallon-to-liter values are higher for the same gallon number in UK mode.
Why is a UK gallon different from a US gallon?
They were defined from different historical standards. As a result, UK and US gallon sizes remain different, and direct gallon comparisons are not reliable without converting to liters first.
How do you calculate gallons to liters?
Multiply gallons by the correct factor: US liquid 3.785411784, US dry 4.40488377086, or imperial 4.54609. This is the gallon to liter conversion formula used in this calculator.