Convert Litre to Imperial Gallon
1 litre = 0.2199692 imperial gallon (imp gal). For example, 10 litre = 2.199692 imperial gallon and 100 litre = 21.99692 imperial gallon. Type any value below to convert litre to imperial gallon both ways — it runs entirely in your browser.
Quick answer: Litre to Imperial Gallon
1 Litre = 0.2199692 Imperial Gallon (L → imp gal). To convert litre to imperial gallon, multiply by 0.2199692. To convert imperial gallon to litre, multiply by 4.54609. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common litre-to-imperial gallon questions.
How to convert Litre to Imperial Gallon
To convert litre to imperial gallon, multiply the number of litre by the conversion factor 0.2199692, because 1 L = 0.2199692 imp gal. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 imp gal = 4.54609 L, so you divide by 0.2199692 (or multiply by 4.54609) to turn imperial gallon back into litre.
imp gal = L × 0.2199692 ·
L = imp gal × 4.54609
- Write down the value you want to convert, in litre.
- Multiply it by 0.2199692.
- The result is the same area/length/quantity expressed in imperial gallon.
Litre to Imperial Gallon — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 litre is 1.099846 imperial gallon because 5 L × 0.2199692 = 1.099846 imp gal.
| Litre | Calculation | Imperial Gallon |
|---|---|---|
| 1 L | 1 L × 0.2199692 = 0.2199692 imp gal | 0.2199692 imp gal |
| 2 L | 2 L × 0.2199692 = 0.4399385 imp gal | 0.4399385 imp gal |
| 3 L | 3 L × 0.2199692 = 0.6599077 imp gal | 0.6599077 imp gal |
| 5 L | 5 L × 0.2199692 = 1.099846 imp gal | 1.099846 imp gal |
| 7 L | 7 L × 0.2199692 = 1.539785 imp gal | 1.539785 imp gal |
| 10 L | 10 L × 0.2199692 = 2.199692 imp gal | 2.199692 imp gal |
| 12 L | 12 L × 0.2199692 = 2.639631 imp gal | 2.639631 imp gal |
| 15 L | 15 L × 0.2199692 = 3.299539 imp gal | 3.299539 imp gal |
| 20 L | 20 L × 0.2199692 = 4.399385 imp gal | 4.399385 imp gal |
| 25 L | 25 L × 0.2199692 = 5.499231 imp gal | 5.499231 imp gal |
| 50 L | 50 L × 0.2199692 = 10.99846 imp gal | 10.99846 imp gal |
| 100 L | 100 L × 0.2199692 = 21.99692 imp gal | 21.99692 imp gal |
Common Litre to Imperial Gallon conversions
These are the litre-to-imperial gallon values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 litre = 0.2199692 imperial gallon
- 2 litre = 0.4399385 imperial gallon
- 2.5 litre = 0.5499231 imperial gallon
- 3 litre = 0.6599077 imperial gallon
- 4 litre = 0.879877 imperial gallon
- 5 litre = 1.099846 imperial gallon
- 6 litre = 1.319815 imperial gallon
- 7 litre = 1.539785 imperial gallon
- 8 litre = 1.759754 imperial gallon
- 9 litre = 1.979723 imperial gallon
- 10 litre = 2.199692 imperial gallon
- 12 litre = 2.639631 imperial gallon
- 15 litre = 3.299539 imperial gallon
- 20 litre = 4.399385 imperial gallon
- 25 litre = 5.499231 imperial gallon
- 30 litre = 6.599077 imperial gallon
- 50 litre = 10.99846 imperial gallon
- 75 litre = 16.49769 imperial gallon
- 100 litre = 21.99692 imperial gallon
- 200 litre = 43.99385 imperial gallon
- 500 litre = 109.9846 imperial gallon
- 1000 litre = 219.9692 imperial gallon
Litre to Imperial Gallon conversion chart (both directions)
The chart below converts litre to imperial gallon and imperial gallon to litre side by side, so it works whichever way you need. 1 litre = 0.2199692 imperial gallon, and 1 imperial gallon = 4.54609 litre.
| Litre → Imperial Gallon | Imperial Gallon → Litre |
|---|---|
| 0.25 L = 0.05499231 imp gal | 0.25 imp gal = 1.136523 L |
| 0.5 L = 0.1099846 imp gal | 0.5 imp gal = 2.273045 L |
| 1 L = 0.2199692 imp gal | 1 imp gal = 4.54609 L |
| 2 L = 0.4399385 imp gal | 2 imp gal = 9.09218 L |
| 3 L = 0.6599077 imp gal | 3 imp gal = 13.63827 L |
| 4 L = 0.879877 imp gal | 4 imp gal = 18.18436 L |
| 5 L = 1.099846 imp gal | 5 imp gal = 22.73045 L |
| 6 L = 1.319815 imp gal | 6 imp gal = 27.27654 L |
| 7 L = 1.539785 imp gal | 7 imp gal = 31.82263 L |
| 8 L = 1.759754 imp gal | 8 imp gal = 36.36872 L |
| 9 L = 1.979723 imp gal | 9 imp gal = 40.91481 L |
| 10 L = 2.199692 imp gal | 10 imp gal = 45.4609 L |
| 12 L = 2.639631 imp gal | 12 imp gal = 54.55308 L |
| 15 L = 3.299539 imp gal | 15 imp gal = 68.19135 L |
| 20 L = 4.399385 imp gal | 20 imp gal = 90.9218 L |
| 25 L = 5.499231 imp gal | 25 imp gal = 113.6523 L |
| 30 L = 6.599077 imp gal | 30 imp gal = 136.3827 L |
| 40 L = 8.79877 imp gal | 40 imp gal = 181.8436 L |
| 50 L = 10.99846 imp gal | 50 imp gal = 227.3045 L |
| 75 L = 16.49769 imp gal | 75 imp gal = 340.9568 L |
| 100 L = 21.99692 imp gal | 100 imp gal = 454.609 L |
| 150 L = 32.99539 imp gal | 150 imp gal = 681.9135 L |
| 200 L = 43.99385 imp gal | 200 imp gal = 909.218 L |
| 250 L = 54.99231 imp gal | 250 imp gal = 1,136.523 L |
| 500 L = 109.9846 imp gal | 500 imp gal = 2,273.045 L |
| 1000 L = 219.9692 imp gal | 1000 imp gal = 4,546.09 L |
Litre vs Imperial Gallon: which is bigger?
A imperial gallon is the larger unit: one imperial gallon equals 4.54609 litres. Put another way, you need 4.54609 litres to make a single imperial gallon.
What is a Litre? History, origin and usage
The litre was introduced in France in 1795 as a republican measure equal to one cubic decimetre, its name derived from the older French litron, in turn from Byzantine Greek (where it had been a unit of weight) via Late Medieval Latin. In 1901 the litre was redefined as the volume of one kilogram of pure water at maximum density, making it very slightly larger than a cubic decimetre. In 1964 that awkward definition was abandoned and the litre returned to being exactly one cubic decimetre.
The litre is the everyday metric unit of volume across most of the world: fuel sold at the pump, bottled water and soft drinks, milk, engine and cooking oil, and car engine capacity. It is the unit people reach for whenever a volume is larger than a kitchen spoonful but smaller than a tankful.
The litre is not an official SI unit but is accepted for use alongside it. Its symbol may be written as a capital L precisely because a lowercase l is easily mistaken for the digit 1 in many fonts.
What is a Imperial Gallon? History, origin and usage
An imperial (UK) gallon is exactly 4.54609 litres — 8 imperial pints, and about 20% larger than the US gallon.
Convert 1 Litre to other units
It can help to see a litre next to the other units it is commonly compared with. One litre (L) is equal to:
| 1 Litre equals | Unit |
|---|---|
| 1,000 mL | Millilitre |
| 100 cL | Centilitre |
| 0.001 m³ | Cubic Metre |
| 1,000 cm³ | Cubic Centimetre |
| 61.02374 in³ | Cubic Inch |
| 0.03531467 ft³ | Cubic Foot |
| 0.2641721 US gal | US Gallon |
| 0.2641721 gal | US Gallon |
| 1.056688 US qt | US Quart |
| 1.056688 qt | US Quart |
| 2.113376 US pt | US Pint |
| 2.113376 pt | US Pint |
| 33.81402 US fl oz | US Fluid Ounce |
| 33.81402 fl oz | US Fluid Ounce |
| 35.19508 imp fl oz | Imperial Fluid Ounce |
| 1.759754 imp pt | Imperial Pint |
| 0.2199692 imp gal | Imperial Gallon |
| 67.62805 tbsp | US Tablespoon |
| 202.8841 tsp | US Teaspoon |
| 8.453506 gi | US Gill |
| 0.02837759 bu | US Bushel |
| 0.006289811 bbl | Oil Barrel |
| 1,000,000 µL | Microlitre |
| 4.226753 US cup | US Cup |
| 33.81402 US fl oz | US Fluid Ounce |
Convert 1 Imperial Gallon to other units
One imperial gallon (imp gal) is equal to:
| 1 Imperial Gallon equals | Unit |
|---|---|
| 4,546.09 mL | Millilitre |
| 454.609 cL | Centilitre |
| 4.54609 L | Litre |
| 0.00454609 m³ | Cubic Metre |
| 4,546.09 cm³ | Cubic Centimetre |
| 277.4194 in³ | Cubic Inch |
| 0.1605437 ft³ | Cubic Foot |
| 1.20095 US gal | US Gallon |
| 1.20095 gal | US Gallon |
| 4.8038 US qt | US Quart |
| 4.8038 qt | US Quart |
| 9.607599 US pt | US Pint |
| 9.607599 pt | US Pint |
| 153.7216 US fl oz | US Fluid Ounce |
| 153.7216 fl oz | US Fluid Ounce |
| 160 imp fl oz | Imperial Fluid Ounce |
| 8 imp pt | Imperial Pint |
| 307.4432 tbsp | US Tablespoon |
| 922.3295 tsp | US Teaspoon |
| 38.4304 gi | US Gill |
| 0.1290071 bu | US Bushel |
| 0.02859405 bbl | Oil Barrel |
| 4,546,090 µL | Microlitre |
| 19.2152 US cup | US Cup |
| 153.7216 US fl oz | US Fluid Ounce |
Tips for converting Litre to Imperial Gallon
- To go from litre to imperial gallon, multiply by 0.2199692; to go back, divide by 0.2199692 (or multiply by 4.54609).
- For a quick mental estimate, remember that 1 litre ≈ 0.2199692 imperial gallon, so 10 litre ≈ 2.199692 imperial gallon.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Litre to Imperial Gallon converter
Type a number into the Litre field and the equivalent in Imperial Gallon appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Imperial Gallon field to convert the other way (imperial gallon to litre). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 L = 0.2199692 imp gal), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for litre-to-imperial gallon conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
Sources
- BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.
- NIST — Definitions of the SI base units — the US National Institute of Standards and Technology reference for the SI base units, used here as an independent cross-check on the base-unit definition.
Watch the system: a <strong>US</strong> gallon, quart, pint and fluid ounce are <strong>not</strong> the same size as the <strong>imperial (UK)</strong> ones — a US gallon is 3.785 L while an imperial gallon is 4.546 L, and a US fluid ounce (29.57 mL) is slightly larger than an imperial fluid ounce (28.41 mL). The units on this page are labelled US or Imperial so the result is unambiguous.
Frequently asked questions
- How many imperial gallon are in 1 litre?
- 1 litre = 0.2199692 imperial gallon (imp gal). To convert any number of litre to imperial gallon, multiply by 0.2199692.
- How do I convert litre to imperial gallon?
- Multiply the number of litre by 0.2199692. For example, 10 litre = 10 × 0.2199692 = 2.199692 imperial gallon, and 25 litre = 5.499231 imperial gallon.
- How many litre are in 1 imperial gallon?
- 1 imperial gallon = 4.54609 litre. So to convert imperial gallon back to litre, multiply by 4.54609.
- What is the formula to convert litre to imperial gallon?
- imperial gallon = litre × 0.2199692. The reverse formula is litre = imperial gallon × 4.54609.
- How much is 100 litre in imperial gallon?
- 100 litre = 21.99692 imperial gallon. (And 1000 litre = 219.9692 imperial gallon.)
- Which is bigger, a litre or a imperial gallon?
- A imperial gallon is larger: 1 imperial gallon = 4.54609 litre.
- Is this litre to imperial gallon converter accurate?
- Yes — every value is computed from the exact 0.2199692 imp gal per L factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert imperial gallon to litre too?
- Yes. The converter works both ways — enter a value in either field. 1 imperial gallon = 4.54609 litre.