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Convert Liters to Gallons

Bridge metric and imperial systems with US/Imperial gallon conversion. Vital for fuel efficiency calculations, automotive industry, and international trade.

Volume Converter

Recommended: 4 for general use, 6 for scientific applications

Conversion Result

Liters:5.0000 L
Gallons (US Liquid Gallon):
Primary Result
1.3209 gal (US liquid)
Gallons (Imperial Gallon):
Alternative Result
1.0998 gal (Imperial)
⚠️≈20% difference between US Liquid and Imperial gallons

Always verify which system your application requires to avoid errors

Gallon Systems Comparison

US Liquid Gallon

Conversion Factor3.785411784 L/gal

Used in United States

  • • Fuel economy measurements
  • • Cooking and recipes
  • • Everyday liquid measurements
Common UsesMPG, Gallons

Automotive and household

  • • Car fuel efficiency
  • • Paint and chemicals
  • • Water heaters

Imperial Gallon

Conversion Factor4.54609 L/gal

Used in UK and Commonwealth

  • • British fuel economy
  • • UK cooking measurements
  • • Commonwealth countries
Common UsesMPG (UK), Gallons

International measurements

  • • UK automotive industry
  • • British recipes
  • • International trade

How to Convert Liters to Gallons

Conversion Formulas

US Liquid: Gallons = Liters ÷ 3.785411784
Imperial: Gallons = Liters ÷ 4.54609

Conversion Steps:

  1. 1
    Choose your gallon system
    US Liquid or Imperial
  2. 2
    Apply the conversion formula
    Divide liters by the appropriate factor
  3. 3
    Round to appropriate precision
    4 decimal places for practical use

Important Considerations

⚠️ System Selection

Choose the correct gallon system based on your region and application to ensure accurate conversions.

🌍 Regional Differences

US vs Imperial gallon systems differ significantly

  • • US: 3.785411784 L/gal
  • • Imperial: 4.54609 L/gal
  • • 20% difference between systems
🚗 Fuel Economy

MPG calculations depend on gallon system

  • • US MPG vs UK MPG
  • • Different conversion factors
  • • Check vehicle specifications
🍳 Cooking Applications

Recipe conversions need correct system

  • • US recipes use US gallons
  • • UK recipes use Imperial gallons
  • • Verify recipe origin
📏 Precision Requirements

Consider precision needs for your application

  • • Scientific: 6+ decimal places
  • • Engineering: 4 decimal places
  • • General use: 2-4 decimal places

Example Cases

Case 1: Fuel Economy Calculation

Input: 50 liters of gasoline
System: US Liquid Gallon
Application: Car fuel efficiency
Result: 13.2089 US gallons
MPG Calculation: 300 miles ÷ 13.21 gal = 22.7 MPG
Use Case: Compare fuel efficiency with US standards

Use Case: Perfect for calculating US fuel economy ratings and comparing vehicle efficiency.

Case 2: UK Recipe Conversion

Input: 10 liters of milk
System: Imperial Gallon
Application: British cooking recipe
Result: 2.1997 Imperial gallons
Recipe Scale: 4x original recipe
Use Case: Scale up traditional UK recipe

Use Case: Essential for scaling British recipes and understanding UK cooking measurements.

Frequently Asked Questions

What are the different types of gallons?
There are two main gallon systems: US Liquid Gallon (3.785411784 L/gal) and Imperial Gallon (4.54609 L/gal). Each is used in different regions and contexts.
When should I use US Liquid vs Imperial gallons?
Use US Liquid gallons for measurements in the United States, including fuel economy, cooking, and everyday liquid measurements. Use Imperial gallons for measurements in the UK and Commonwealth countries.
How do I convert liters to different gallon systems?
Multiply liters by the appropriate factor: divide by 3.785411784 for US Liquid gallons, or divide by 4.54609 for Imperial gallons. Our converter automatically handles both systems.
What is the difference between liters and gallons?
Liters are metric units (1 L = 1000 mL), while gallons are imperial/US units. The exact conversion depends on the gallon system: US Liquid (3.785411784 L/gal) or Imperial (4.54609 L/gal).
How accurate are the conversions?
Our converter uses standard conversion factors as defined by international standards. Results are accurate to 6 decimal places for liters and 4 decimal places for gallons, regardless of the gallon system selected.

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