Volume · Unit Converter

Convert Liter to Imperial Gallon

Convert liters to imperial gallons instantly. 1 liter = 0.2199692483 imperial gallon — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Imperial Gallon to Liter converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Jaya Christiyan K G, Ph.D.
Volume category 2 min read Published Last reviewed Updated

Units explained

Metric / SI

Liter

What is a liter?

The liter is a metric unit of volume equal to one cubic decimeter (0.001 m³). It is the everyday metric volume unit.

Origin of the liter

Introduced in France in 1795; redefined in 1964 as exactly one cubic decimeter.

Where it is used

The world's common unit for beverages, fuel, and household liquids.

When and where it was developed

France, 1795; CGPM 1964.

Imperial (UK)

Imperial Gallon

What is a imperial gallon?

The imperial gallon is defined as exactly 4.54609 liters.

Origin of the imperial gallon

Set by the British Weights and Measures Act of 1824 as the volume of 10 lb of water.

Where it is used

Used for fuel and beverages in the UK and Commonwealth.

When and where it was developed

UK, 1824.

Liter to Imperial Gallon conversion formula

The relationship between liters and imperial gallons:

1 L = 0.2199692483 gal
1 gal = 4.54609 L

To convert liters to imperial gallons, multiply the value in liters by 0.2199692483. To reverse, multiply imperial gallons by 4.54609.

How to use this converter

Type a value into the calculator. The result in imperial gallons updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Imperial Gallon to Liter converter for the reverse direction.

Step-by-step: convert liters to imperial gallons

  1. Write down the value in liters (L).
  2. Multiply that value by the factor 0.2199692483.
  3. The product is the equivalent value in imperial gallons (gal).
  4. To reverse, multiply the imperial gallon value by 4.54609.

Worked examples

Example 1 — Convert 1 L to gal:
1 × 0.2199692483 = 0.2199692483 gal

Example 2 — Convert 100 L to gal:
100 × 0.2199692483 = 21.9969248299 gal

Real-world example — Postcard and small-object dimensions

A postcard is about 5 liters wide. Converting to imperial gallons is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 L × 0.2199692483 = 1.0998462415 gal

Real-world example — Ruler-scale measurements

A 30-liter school ruler converts cleanly to imperial gallons — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 L × 0.2199692483 = 6.599077449 gal

Real-world example — Hardware-scale dimensions

A 10-liter fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between liters and imperial gallons daily when mixing metric and imperial tools.

10 L × 0.2199692483 = 2.199692483 gal

Liter to Imperial Gallon conversion table

Standard reference values for converting liters to imperial gallons:

Liter [L]Imperial Gallon [gal]
0.010.0021996925
0.10.0219969248
10.2199692483
20.4399384966
30.6599077449
40.8798769932
51.0998462415
102.199692483
204.399384966
306.599077449
408.798769932
5010.998462415
10021.9969248299
500109.9846241495
1000219.9692482991

Frequently asked questions

How many imperial gallons is 1 liter?
1 liter equals 0.2199692483 imperial gallon.
How do I convert liters to imperial gallons?
Multiply the value in liters by 0.2199692483 to get imperial gallons.
How do I convert imperial gallons back to liters?
Multiply the value in imperial gallons by 4.54609, or use the Imperial Gallon to Liter converter.
How many imperial gallons is 100 liters?
100 liters equals 21.9969248299 imperial gallons, because 100 × 0.2199692483 = 21.9969248299.

Convert Liter to other volume units

Show all Liter conversions
Metric / SI (13 units)
Liter to Picoliter (pL) Liter to Nanoliter (nL) Liter to Cubic Millimeter (mm³) Liter to Microliter (µL) Liter to Cubic Centimeter (cm³) Liter to Milliliter (mL) Liter to Centiliter (cL) Liter to Deciliter (dL) Liter to Dekaliter (daL) Liter to Hectoliter (hL) Liter to Cubic Meter (m³) Liter to Kiloliter (kL) Liter to Cubic Kilometer (km³)
US Customary (Liquid) (15 units)
Liter to US Minim (min) Liter to US Fluid Dram (fl dr) Liter to US Teaspoon (tsp) Liter to US Dessertspoon (dsp) Liter to US Tablespoon (tbsp) Liter to US Fluid Ounce (fl oz) Liter to US Gill (gi) Liter to US Cup (cup) Liter to US Pint (pt) Liter to US Quart (qt) Liter to US Gallon (gal) Liter to US Liquid Barrel (bbl) Liter to US Oil Barrel (bbl (oil)) Liter to US Hogshead (hhd) Liter to Tun (tun)
US Customary (Dry) (5 units)
Liter to US Dry Pint (dry pt) Liter to US Dry Quart (dry qt) Liter to US Dry Gallon (dry gal) Liter to US Peck (pk) Liter to US Bushel (bu)
Imperial (UK) (14 units)
Liter to Imperial Minim (min) Liter to Imperial Fluid Drachm (fl dr) Liter to Imperial Teaspoon (tsp) Liter to Imperial Dessertspoon (dsp) Liter to Imperial Tablespoon (tbsp) Liter to Imperial Fluid Ounce (fl oz) Liter to Imperial Gill (gi) Liter to Imperial Cup (cup) Liter to Imperial Pint (pt) Liter to Imperial Quart (qt) Liter to Imperial Gallon (gal) Liter to Imperial Peck (pk) Liter to Imperial Bushel (bu) Liter to Imperial Barrel (bbl)
Cubic (length-derived) (4 units)
Liter to Cubic Inch (in³) Liter to Cubic Foot (ft³) Liter to Cubic Yard (yd³) Liter to Cubic Mile (mi³)
Cooking / Culinary (5 units)
Liter to Drop (gtt) Liter to Metric Teaspoon (tsp) Liter to Metric Dessertspoon (dsp) Liter to Metric Tablespoon (tbsp) Liter to Metric Cup (cup)
Industrial / Specialized (6 units)
Liter to Board Foot (bf) Liter to Stere (st) Liter to Ton Register (RT) Liter to Cord (cord) Liter to Acre-Inch (ac·in) Liter to Acre-Foot (ac·ft)

Sources & references

Conversion factor (1 L = 0.2199692483 gal) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.