US Liquid Gallons to Liters Converter

1 gal = 3.785411784 L. Type any value below for the exact liters figure.

Measurement system: This conversion uses the US customary measure, not the Imperial/UK measure.

gal
3.785411784L

1 gal = 3.785411784 L

For the same numeric input: 1 US gal = 3.785411784 L · 1 Imperial gal = 4.54609 L.

Conversion summary

1 gal = 3.785411784 L

Formula
Liter = US Liquid Gallon × 3.785411784
Category
Volume
Units
gal → L

1 gal in other units

Values update with the converter above. Select a row to open that conversion's detailed page.

Metric

  • Cubic meter0.003785412 m³
  • Liter3.785412 L
  • Milliliter3,785.412 mL
  • Deciliter37.85412 dL
  • Centiliter378.5412 cL
  • Cubic centimeter3,785.412 cm³

US / Imperial

Kitchen measures

  • Metric Tablespoon (15 mL)252.3608 tbsp
  • Metric Teaspoon (5 mL)757.0824 tsp
  • Turkish Water Glass18.92706 glass

Traditional and regional

  • Kile0.1023084 kile
  • Shinik0.4092337 shinik

How do you convert US liquid gallons to liters?

To convert US liquid gallons to liters, multiply the number of US liquid gallons by 3.785411784. 1 gal = 3.78541 L.

Conversion formula

Liter = US Liquid Gallon × 3.785411784

US liquid gallons, not Imperial gallons

This converter uses the US liquid gallon, which is approximately 3.78541 liters. It is the gallon used on most US fuel, food and consumer-product labels.

An Imperial gallon equals exactly 4.54609 liters and is about 20% larger. Check whether a source is US customary or Imperial before converting a fuel figure, container capacity or recipe.

Important: Use this page for US liquid gallons. For UK or Imperial gallons, use the Imperial gallons converter below.

Related tools

US Liquid Gallons to liters conversion table

US Liquid Gallons (gal)Liters (L)
1 gal3.78541 L
2 gal7.57082 L
5 gal18.9271 L
10 gal37.8541 L
20 gal75.7082 L
50 gal189.271 L
100 gal378.541 L

What is US Liquid Gallon?

US Liquid Gallon is a volume unit used for liquids, containers, storage and technical capacity calculations.

Short history of US Liquid Gallon

The US liquid gallon descends from the English wine gallon of 231 cubic inches, which the United States kept after Britain introduced the larger imperial gallon in 1824. It equals 3.785411784 liters.

Open the US Liquid Gallon unit guide

What is Liter?

The liter is a widely used volume unit for liquids and capacities. One liter equals 0.001 cubic meters.

Short history of Liter

The liter was introduced in France in 1795 as one cubic decimeter. From 1901 to 1964 it was defined by the mass of water, which made it slightly larger; since 1964 it is again exactly one cubic decimeter.

Open the Liter unit guide

Frequently asked questions

What is 1 US Liquid Gallon in Liter?

1 gal = 3.785411784 L.

How do you convert US Liquid Gallon to Liter?

To convert US liquid gallons to liters, multiply the number of US liquid gallons by 3.785411784. 1 gal = 3.78541 L.

Frequently asked questions

How many liters are in 1 US liquid gallon?

1 gal = 3.78541 L.

How do you convert US liquid gallons to liters?

To convert US liquid gallons to liters, multiply the number of US liquid gallons by 3.785411784. 1 gal = 3.78541 L.

How many US liquid gallons are in 1 liter?

1 L = 0.264172 gal.

Sources

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: Guide to the SI: Units Outside the SI
  3. NIST: Guide to the SI: Volume Conversion Factors
  4. NIST: Guide for the Use of the International System of Units

Other languages

View the Turkish versionOpen the German version