How do I convert liters to US gallons?

Divide liters by 3.78541 to get US gallons. For example, 10 L = 10 ÷ 3.78541 = 2.64172 US gallons. 1 US gallon = 3.78541 liters.

What is the difference between US and UK gallons?

US gallon is smaller: 1 US gallon = 3.78541 L. UK gallon is larger: 1 UK gallon = 4.54609 L. 1 UK gallon ≈ 1.20095 US gallons, 1 US gallon ≈ 0.83267 UK gallons.

How do I convert milliliters to fluid ounces?

Divide milliliters by 29.5735 to get fluid ounces. For example, 500 mL = 500 ÷ 29.5735 = 16.907 fl oz. 1 fl oz = 29.5735 mL.

How accurate are the conversions?

The conversions use precise factors: 1 US gallon = 3.78541 L, 1 UK gallon = 4.54609 L, 1 fl oz = 29.5735 mL. Results are accurate to 4 decimal places.

Can I convert between all liquid units?

Yes, the calculator supports liters, milliliters, US gallons, UK gallons, and fluid ounces. All conversions are calculated simultaneously.

Which countries use which gallon?

US uses US gallon (3.78541 L). UK and Commonwealth countries use UK gallon (4.54609 L). Most other countries use liters.

Liters & Gallons Converter

Convert between US/UK gallons, liters, milliliters, and fluid ounces. Perfect for international liquid measurements.

Converter

Result

Liter (L): 0
Milliliter (mL): 0
US Gallon (gal): 0
UK Gallon (gal): 0
Fluid Ounce (fl oz): 0

Formula & Guide

Conversion Formulas

US

Liters to US Gallons

US gal = L ÷ 3.78541

Divide liters by 3.78541 to get US gallons

UK

Liters to UK Gallons

UK gal = L ÷ 4.54609

Divide liters by 4.54609 to get UK gallons

US↔UK

US vs UK Gallon

1 UK gal = 1.20095 US gal

1 US gal = 0.83267 UK gal (UK gallon is about 20% larger)

Step-by-Step Scenario

Example Scenario

Value

10 L

Target Unit

US gallons

1

Apply Conversion Formula

US gal = L ÷ 3.78541

2

Calculate

US gal = 10 ÷ 3.78541

US gal = 2.64172

Additional Examples

US Gallons to UK Gallons

Input: 10 US gal

Result

10 × 0.832674 = 8.32674 UK gal

UK Gallons to US Gallons

Input: 5 UK gal

Result

5 × 1.20095 = 6.00475 US gal

Characteristics of Liquid Volume Conversion

US vs UK Gallons

Important distinction: US gallon (3.78541 L) is smaller than UK gallon (4.54609 L). 1 UK gallon ≈ 1.20095 US gallons. Always specify which gallon system.

Multiple Units

Supports liters, milliliters, US gallons, UK gallons, and fluid ounces for comprehensive liquid conversion.

International Use

Perfect for international travel, recipes, and understanding liquid measurements in different countries.

Bidirectional

Convert from any unit to any other unit. No need to convert to a base unit first.

Important Notes

US gallon is smaller than UK gallon: 1 US gallon = 3.78541 L, 1 UK gallon = 4.54609 L. UK gallon is about 20% larger.
For practical use, round results to 2-4 decimal places. The calculator shows up to 4 decimals for precision.
Quick cross-conversion: 1 UK gallon ≈ 1.20095 US gallons, 1 US gallon ≈ 0.83267 UK gallons.
Most countries use liters (metric system). The United States uses US gallons, and UK/Commonwealth countries use UK gallons.
Fluid ounces are different from weight ounces. 1 fl oz (US) = 29.5735 mL. This is a volume measurement, not weight.
When converting recipes or measurements, always specify US or UK gallons to avoid confusion.

Frequently Asked Questions

Find answers to common questions about liquid volume conversion.