Gallons to Liters: 1 gal equals 3.785412 L. To convert gallons to liters, multiply by 3.785412 (liters = gallons × 3.78541). For example, 10 gal = 37.854118 L.
How to Convert Gallons to Liters
To convert from gallons to liters, multiply the value by 3.785412. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Gallons to Liters:
liters = gallons × 3.78541 - Liters to Gallons:
gallons = liters ÷ 3.78541
Gallons to Liters Conversion Chart
| Gallons (gal) | Liters (L) |
|---|---|
| 0.1 | 0.378541 |
| 0.25 | 0.946353 |
| 0.5 | 1.892706 |
| 1 | 3.785412 |
| 2 | 7.570824 |
| 3 | 11.356235 |
| 5 | 18.927059 |
| 10 | 37.854118 |
| 20 | 75.708236 |
| 25 | 94.635295 |
| 50 | 189.270589 |
| 100 | 378.541178 |
| 250 | 946.352946 |
| 1000 | 3785.411784 |
Understanding the Units
What is a Gallon?
The US liquid gallon equals exactly 3.785411784 liters; the imperial (UK) gallon equals 4.54609 liters.
From the Old Northern French galun, originally a wine measure.
Common contexts: fuel, milk, paint.
What is a Liter?
A liter is a non-SI unit accepted for use with SI; equal to exactly 1 cubic decimeter, or 1,000 cubic centimeters.
From the French litre, originally based on a 1795 measure of one cubic decimetre.
Common contexts: beverages, fuel, cooking.
Real-World Reference Points
| Item | Gallons (gal) | Liters (L) |
|---|---|---|
| A milk jug (US) | 1 | 3.7854 |
| Average car gas tank (US) | 14 | 52.9958 |
How to Convert Gallons to Liters
To convert US gallons to liters, multiply by 3.78541. The US gallon is defined as exactly 231 cubic inches, which equals 3.785411784 liters.
Conversion Formula
- Gallons to Liters: L = gal × 3.78541
- Liters to Gallons: gal = L ÷ 3.78541
Common Conversions
| Gallons | Liters |
|---|---|
| 1 | 3.785 |
| 2 | 7.571 |
| 3.7 | 14.006 |
| 5 | 18.927 |
| 10 | 37.854 |
| 20 | 75.708 |
| 50 | 189.271 |
US vs Imperial Gallons
This converter uses the US gallon (3.785 L). The Imperial gallon used in the UK is larger at 4.546 liters. Always verify which gallon system applies to your context.