Liters ↔ Gallons Converter
Convert between liters and gallons instantly (US & UK gallons)
📚 Liters ↔ Gallons Conversion Details
Liters to US Gallons Formula
To convert liters to US gallons, divide liters by 3.78541.
Liters to UK Gallons Formula
To convert liters to UK gallons, divide liters by 4.54609.
Bidirectional Conversion
This converter works both ways simultaneously:
- Type in liters → gallons updates automatically
- Type in gallons → liters updates automatically
- No buttons to click - works as you type
Common Uses
- Fuel consumption (MPG to L/100km)
- Cooking and recipes
- Water and liquid measurements
- Chemical and laboratory work
📏 How This Converter Works
This is a bidirectional converter that works in real-time and supports both US and UK gallons:
- Select gallon type: Choose between US gallons (3.78541 L) or UK gallons (4.54609 L)
- Liters → Gallons: When you type in the liters field, gallons update automatically
- Gallons → Liters: When you type in the gallons field, liters update automatically
- No swapping needed: Both conversions happen simultaneously
US gallons = liters ÷ 3.78541
UK gallons = liters ÷ 4.54609
liters = gallons × conversion_factor
// Example 1: 10 liters to US gallons
10 ÷ 3.78541 = 2.64172 gallons
// Example 2: 5 UK gallons to liters
5 × 4.54609 = 22.73045 liters
📊 Conversion Table (US Gallons)
| Liters (L) | US Gallons | UK Gallons |
|---|---|---|
| 1 L | 0.264 gal | 0.220 gal |
| 5 L | 1.321 gal | 1.100 gal |
| 10 L | 2.642 gal | 2.200 gal |
| 20 L | 5.283 gal | 4.399 gal |
| 50 L | 13.209 gal | 10.998 gal |
| 100 L | 26.417 gal | 21.997 gal |
⚠️ Important: US vs UK Gallons
US Gallon: 1 US gallon = 3.785411784 liters (exact)
UK (Imperial) Gallon: 1 UK gallon = 4.54609 liters (exact)
Difference: A UK gallon is about 1.2 times larger than a US gallon.
Most countries use liters. The US uses US gallons. The UK uses UK gallons.
❓ Frequently Asked Questions
A: A US gallon equals 3.78541 liters, while a UK (Imperial) gallon equals 4.54609 liters. UK gallons are about 20% larger than US gallons.
A: Use US gallons for the United States and Latin America. Use UK gallons for the United Kingdom, Canada, and some Commonwealth countries.
A: There are exactly 3.785411784 liters in one US gallon.
A: No! The conversion happens automatically as you type in either field.
A: This converter provides exact calculations using precise conversion factors.