Gallons to Liters Converter Tool

Quick Reference

  • 1 US gallon = 3.78541 liters
  • 1 Imperial gallon = 4.54609 liters
  • 1 liter = 0.264172 US gallons

Introduction

Use this gallons to liters converter for fast, accurate results. It handles gallons to liters and liters to gallons with one switch. The tool uses the United States gallon factor of 3.78541 liters. Type a number and you get a clean answer in seconds.

How It Works

For gallons to liters, we multiply your input by 3.78541. For liters to gallons, we divide your input by 3.78541. The result displays to three decimal places for easy reading. You also see the exact formula used in the calculation. This factor matches the United States gallon used in many fields. The Imperial gallon equals 4.54609 liters and differs from the United States gallon.

Quick reference

How to Use This Tool

  1. Open the converter and check the mode shown in the heading.
  2. Use the switch button if you need the other direction.
  3. Enter the amount in the single input field.
  4. Use whole numbers or decimals based on your data.
  5. Press Convert or press Enter to run the calculation.
  6. Read the result line and the formula that follows.

Input and controls

Output explained

Benefits of Using Our Gallons to Liters Tool

Notes and limits

Common use cases

Related conversions

Wrapping Up

This gallons to liters converter stays clear and quick. Use it for daily tasks or work needs. Pick the right mode then enter a value and press Convert. You get the number and the formula in one place. For Imperial gallon tasks, use the correct factor of 4.54609 liters. For milliliters and liters, try the single two way converter.