galL
Gallons to Liters Converter
Convert US gallons to liters for international use
Precise Calculation
Works Offline
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gal
3.78541L
Formula
1 US gallon = 3.78541 liters
Why Use Our Gallons to Liters Converter?
Travel fuel planning
Scientific measurements
Import/export calculations
Recipe scaling
Common Gallons to Liters Conversions
| Gallons (gal) | Liters (L) |
|---|---|
| 1 gal | 3.79 L |
| 5 gal | 18.93 L |
| 10 gal | 37.85 L |
| 15 gal | 56.78 L (typical car tank) |
| 55 gal | 208.2 L (drum) |
When to Convert Gallons to Liters
Car Fuel Planning
Estimate refueling needs when driving in metric countries.
Chemical Ordering
Convert US product quantities to metric units.
Brewing & Fermenting
Scale American homebrew recipes to metric.
Industrial Use
Convert drum and tank capacities for international shipping.
Pro Tips for Quick Conversion
- Multiply gallons by 4 for a rough liter estimate (actual: 3.78)
- Imperial gallon is larger: 4.55 liters vs 3.78 for US gallon
- A 15-gallon car tank holds about 57 liters
Did you know? The US gallon is based on the wine gallon used in England in the 18th century, while the Imperial gallon was standardized in 1824.
Frequently Asked Questions
Multiply the gallons value by 3.7854 to get liters. Our calculator does this automatically.
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