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Reverse conversion: gallons to liters

liters to US gallons Converter

Convert liters to US gallons accurately. Perfect for fuel calculations, aquarium planning, and liquid volume conversions.

Instant answer

1 liters = 0.264172 gallons

Formula: gal = L x 0.2641720524

Liters To Gallons Converter
liters
0.264172
US gallons

Calculation: gal = L x 0.2641720524

Quick formula: gal = L x 0.2641720524

Common liters to gallons values

1 liters = 0.264172 gallons
5 liters = 1.32086 gallons
10 liters = 2.641721 gallons
20 liters = 5.283441 gallons
50 liters = 13.208603 gallons
100 liters = 26.417205 gallons

Worked examples

Common liters to gallons searches with the exact calculation.

3.785 liters = 0.999891 gallons

Exactly one US gallon converted from liters.

50 liters = 13.208603 gallons

Common fuel tank capacity for mid-sized cars.

10 liters = 2.641721 gallons

Useful for large water bottles or aquarium maintenance.

liters to gallons quick conversions

3.785 liters to gallons = 0.999891 gallons

20 liters to gallons = 5.283441 gallons

50 liters to gallons = 13.208603 gallons

Conversion factor

1 liter = 0.264172 US liquid gallons

Use the full factor or formula when precision matters.

Conversion Formula

gal = L x 0.2641720524

Take the value in liters, multiply it by 0.264172, and the result is the same amount in gallons.

This page uses US gallons. If you need Imperial gallons, the result will be different, so confirm the gallon standard first.

Reverse

L = gal x 3.785411784

To go the other way, use the reverse formula so the unit relationship stays exact.

How to Convert

  1. 1Start with the liters valueEnter the amount you already have in L. Double-check the source unit first so you are converting the right number.
  2. 2Apply the liters to gallons formulaUse gal = L x 0.2641720524 or let the converter calculate it instantly. This gives you the equivalent value in gal.
  3. 3Round for your use caseUse more decimals for science, billing, or engineering. For everyday use, round only after the full conversion is done.
All Volume tools

liters to gallons chart

Common reference values

Quick reference values for common liters to US gallons conversions.
litersUS gallons
liters1
US gallons0.264172 US gallons
liters2
US gallons0.528344 US gallons
liters5
US gallons1.32086 US gallons
liters10
US gallons2.641721 US gallons
liters20
US gallons5.283441 US gallons
liters50
US gallons13.208603 US gallons
liters100
US gallons26.417205 US gallons

Popular L values

Open exact-value pages for common lookups on this converter.

1 L → gal2 L → gal3 L → gal4 L → gal5 L → gal6 L → gal7 L → gal8 L → gal9 L → gal10 L → gal11 L → gal12 L → gal13 L → gal14 L → gal15 L → gal16 L → gal17 L → gal18 L → gal19 L → gal20 L → gal21 L → gal22 L → gal23 L → gal24 L → gal25 L → gal26 L → gal27 L → gal28 L → gal29 L → gal30 L → gal31 L → gal32 L → gal33 L → gal34 L → gal35 L → gal36 L → gal37 L → gal38 L → gal39 L → gal40 L → gal41 L → gal42 L → gal43 L → gal44 L → gal45 L → gal46 L → gal47 L → gal48 L → gal49 L → gal50 L → gal51 L → gal52 L → gal53 L → gal54 L → gal55 L → gal56 L → gal57 L → gal58 L → gal59 L → gal60 L → gal61 L → gal62 L → gal63 L → gal64 L → gal65 L → gal66 L → gal67 L → gal68 L → gal69 L → gal70 L → gal71 L → gal72 L → gal73 L → gal74 L → gal75 L → gal76 L → gal77 L → gal78 L → gal79 L → gal80 L → gal81 L → gal82 L → gal83 L → gal84 L → gal85 L → gal86 L → gal87 L → gal88 L → gal89 L → gal90 L → gal91 L → gal92 L → gal93 L → gal94 L → gal95 L → gal96 L → gal97 L → gal98 L → gal99 L → gal100 L → gal

Frequently Asked Questions

QHow many gallons is 20 liters?

20 liters equals approximately 5.28 US gallons. Multiply 20 × 0.26417 = 5.28 gallons. A typical small fuel can holds 20 liters.

QHow many liters is 1 US gallon?

1 US gallon equals exactly 3.785411784 liters. This is the legal definition of the US liquid gallon. The UK imperial gallon is slightly larger at 4.546 liters.

QIs the UK gallon different from the US gallon?

Yes. The UK (Imperial) gallon equals 4.546 liters, while the US gallon equals only 3.785 liters — about 20% smaller. Fuel efficiency ratings and drink sizes differ between countries because of this.

QHow many gallons is a 50-liter tank?

A 50-liter tank holds approximately 13.21 US gallons. Multiply 50 × 0.26417 = 13.21 gallons. Common for motorcycle fuel tanks, camping water carriers, and small aquariums.

QHow do I convert gallons back into liters?

For the reverse direction, use the Gallons To Liters Converter page.

Unit definitions

What is a Liter?

A liter is a metric unit of volume used worldwide for drinks, fuel, and liquid chemicals.

What is a Gallon?

A gallon is a unit of liquid volume in the US customary system, equal to 128 fluid ounces.

Common uses for liters to gallons

  • Calculating fuel consumption when traveling between metric and imperial regions.
  • Determining chemical or nutrient mixtures for home and garden.
  • Understanding volume specs for consumer goods sold internationally.

Related liters to gallons conversions

If you need the reverse direction, use the gallons to liters converter.

If you want other conversions from the same starting unit, compare liters to ml, and liters to fl oz.

If you need another path into the same target unit, check ml to gallons, and fl oz to gallons.

You can browse the full volume converters category or open popular conversions for other high-demand tools.

Trust and editorial review

Written by

Convertaro Editorial Team

Reviewed by

Convertaro Review Process

Last updated

April 7, 2026

Liters To Gallons Converter is based on standard volume definitions and the formula shown on the page.

We review the displayed formula, example values, and reverse conversion logic for consistency before publishing updates.

Last updated: April 7, 2026

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