Utility July 13, 2026 · 8 Min Read

Liters to Gallons Calculator – Guide & Formulas

Convert liters to US and UK gallons (L to gal) instantly with this high-precision volume converter.

Quickly convert liquid volume from metric liters to standard gallons. This tool supports both US Liquid and UK Imperial gallons for international compatibility.

Key Takeaway

Use the free Liters to Gallons Calculator to convert liters to us and uk gallons (l to gal) instantly with this high-precision volume converter. Get instant results with step-by-step explanations.

How to Use the Liters to Gallons Calculator

  1. Enter the volume in liters (L) in the input field.
  2. Select your preferred gallon standard: US Liquid or UK Imperial.
  3. View the converted value in gallons (gal) instantly.
  4. Copy the detailed conversion report to your clipboard.

The Formula

Gallons = Liters * 0.26417205 (US) or Liters * 0.21996925 (UK)

Variable Definitions

  • Liters: The volume in metric liters
  • Gallons: The equivalent volume in US or UK gallons

Converting a 20-Liter Fuel Canister

A motorist has a 20-liter canister of fuel and wants to know its US gallon equivalent.

  1. Step 1: Input Liters = 20.
  2. Step 2: Multiply by 0.26417205.
  3. Step 3: 20 * 0.26417205 = 5.28344 US gallons.

Frequently Asked Questions

How many liters are in a US gallon?

A US gallon contains exactly 3.785411784 liters.

How many liters are in an Imperial (UK) gallon?

A UK Imperial gallon contains exactly 4.54609 liters.