Gallon to Liter Converter

Convert gallon to liter easily (Imperial to Metric)

Gallon to Liter Conversion
Gallon (gal) Imperial
Liter (L) Metric
Common Volume Values
Volume Equivalents
1 liter = 1000 ml
1 gallon = 3.785 liters
1 cup = 236.588 ml
1 pint = 2 cups = 473.176 ml
1 quart = 2 pints = 0.946 liters
Conversion Result
1 gal = 3.78541 L
1 gal = 3.78541 L
Exact Value
3.78541
Rounded
3.79
Imperial to Metric Conversion
Imperial ↔ Metric
Unit Comparison
From Unit
Gallon (gal)
System: Imperial
To Unit
Liter (L)
System: Metric
Quick Reference
1 gal = In Other Units
3,785.410000 ml
3.785410 L
3,785.410000 cm³
0.003785
767.999886 tsp
255.999270 tbsp
16.000008 cup
8.000004 pt
3.999998 qt
230.999384 in³
0.133681 ft³

Related Volume Conversions

1 gal
8 pt
I I
500 cup
118.29 L
I M
5000 gal
1154996.92 in³
I I
100 gal
1600 cup
I I
50 in³
0.82 L
I M
2000 ft³
56633.6 L
I M
500 m³
500000 L
M M
250 m³
250000 L
M M
5 gal
18927.05 cm³
I M
50 tbsp
0.74 L
I M

Gallon to Liter Converter | Volume Converter

Convert 1 gallon to liters. 1 gallon = 3.7854 liters. Easy volume conversion calculator for gallon to l. Accurate results for liquid and container volume conversion.

Gallon to Liter Conversion

Convert gallon to liter easily with our accurate volume conversion calculator. Whether you're working on a recipe that requires imperial to metric conversions or need to understand volumes in different units, our tool provides instant results.

Conversion Formula

1 gal = 3.78541 L

To convert gallon to liter, multiply the gallon value by 3.78541.

Common Gallon to Liter Conversions

Gallon (gal) = Liter (L)
1 3.7854
5 18.9271
10 37.8541
50 189.2705
100 378.541
250 946.3525
500 1892.705
1000 3785.41

Understanding Gallon and Liter

Gallon (gal)

The gallon is a unit of volume in the Imperial system.

• 1 gallon = 4 quarts = 8 pints

• 1 US gallon = 3.78541 liters

• Commonly used for fuel in the United States

• Used for milk and other beverages

Liter (L)

The liter is a unit of volume in the Metric system.

• International standard for volume

• Used in scientific research

• Standard for beverage containers worldwide

• Used for fuel in most countries

Imperial to Metric Conversion

You are converting from a imperial unit to a metric unit. This is a common conversion needed when:

  • Following recipes from different countries
  • Working with international product specifications
  • Traveling between countries using different measurement systems
  • Importing or exporting goods with different packaging
  • Studying or working in international contexts

Practical Examples

Everyday Use
  • • A 1-gallon milk jug = 3.785 liters
  • • A 5-gallon water bottle = 18.927 liters
  • • A 10-gallon fish tank = 37.854 liters
Professional Use

Conversion Tips

Quick Mental Calculation

For approximate conversions, remember these quick multipliers:

  • Multiply by 4 for quick gallons to liters
  • 1 gallon ≈ 4 liters
  • 5 gallons ≈ 20 liters
For Precise Calculations

Always use our converter tool or the exact conversion factor:

1 gal = 3.78541 L