How Many Liters in a Gallon?
1 US liquid gallon equals approximately 3.785 liters. Note that UK imperial gallons are different (4.546 liters).
Quick Answer
3.785 liters
US gallon = liters
Conversion Table
| US gallon | liters | Note |
|---|---|---|
| 1 quart | 0.95 L | 1/4 gallon |
| 1/2 gallon | 1.89 L | 2 quarts |
| 1 gallon (US) | 3.785 L | Standard |
| 1 gallon (UK) | 4.546 L | Imperial |
| 2 gallons | 7.57 L | US |
| 5 gallons | 18.9 L | US |
Alternative Conversions
Quarts
1 gallon = 4 quarts
Pints
1 gallon = 8 pints
Cups
1 gallon = 16 cups
Fluid oz
1 gallon = 128 fl oz
Frequently Asked Questions
Almost. 4 liters equals approximately 1.06 US gallons. 1 US gallon equals about 3.785 liters.
No. A UK (imperial) gallon equals approximately 4.546 liters, while a US gallon equals about 3.785 liters. The UK gallon is about 20% larger.
Measuring Tips
Use graduated containers with both liter and gallon markings for large volumes. For precise conversions, use a calculator rather than mental math. Remember: UK gallons are significantly larger than US gallons (20% difference).
Common Mistakes to Avoid
❌ Assuming all gallons are the same (UK is 20% larger) ❌ Using "gallon" jugs that may not be true gallons ❌ Not checking recipe origin (US vs UK/Australia) ❌ Converting gallons to cups without checking which gallon type
When to Use This Measurement
Use gallons for: Large batch cooking; brewing; fuel efficiency; pool chemicals; industrial recipes. For home baking, liters, quarts, or cups are more practical. Most home bakers rarely need gallons.
Recommended Equipment
5-gallon or 1-gallon graduated containers Kitchen scale for converting to weight Calculator for accurate conversions Conversion app for international recipes
Recommended products (Amazon affiliate links):
Recipe Scaling Guide
US to UK gallons: Multiply by 1.2 UK to US gallons: Multiply by 0.83 Liters to US gallons: Divide by 3.785 Liters to UK gallons: Divide by 4.546 Example: 10 liters = 2.64 US gallons = 2.2 UK gallons