Convert Liters to Imperial Gallons
1 liter (L) equals 0.2199692483 imperial gallons (gal (imp)).
1 L = 0.2199692483 gal (imp)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk liter to imperial gallon converter to paste a column from Excel.
How to Convert Liter to Imperial Gallon
- 1 L = 0.2199692483 gal (imp)
- 1 gal (imp) = 4.54609 L
- Example: convert 15 L to gal (imp): 15 L = 15 × 0.2199692483 gal (imp) = 3.299538724 gal (imp)
Formula
gal (imp) = L × 0.2199692482991
or gal (imp) = L ÷ 4.54609
Derivation from SI units:
- 1 L = 1 dm³ = (0.1 m)³ = 10⁻³ m³
- 1 imp gal = 4.54609 L = 0.00454609 m³ (exact, by definition)
- 1 L = 0.001 m³ ÷ 0.00454609 m³ per gal (imp) = 0.2199692482991 gal (imp)
Both units are defined exactly, so the factor is exact. Liter definition: liter; Imperial Gallon definition: imperial gallon.
Worked examples
- 4.54609 L is exactly 1 gal (imp).
4.54609 L × 0.2199692483 = 1 gal (imp) - A 60 L fuel tank holds 13.1981549 gal (imp).
60 L × 0.2199692483 = 13.1981549 gal (imp)
Liter to Imperial Gallon conversion table
| Liters (L) | Imperial Gallons (gal (imp)) |
|---|---|
| 0.1 L | 0.02199692483 gal (imp) |
| 0.25 L | 0.05499231207 gal (imp) |
| 0.33 L | 0.07258985194 gal (imp) |
| 0.5 L | 0.1099846241 gal (imp) |
| 0.75 L | 0.1649769362 gal (imp) |
| 1 L | 0.2199692483 gal (imp) |
| 1.5 L | 0.3299538724 gal (imp) |
| 2 L | 0.4399384966 gal (imp) |
| 3 L | 0.6599077449 gal (imp) |
| 4 L | 0.8798769932 gal (imp) |
| 5 L | 1.099846241 gal (imp) |
| 10 L | 2.199692483 gal (imp) |
| 15 L | 3.299538724 gal (imp) |
| 19 L | 4.179415718 gal (imp) |
| 20 L | 4.399384966 gal (imp) |
| 25 L | 5.499231207 gal (imp) |
| 50 L | 10.99846241 gal (imp) |
| 100 L | 21.99692483 gal (imp) |
| 200 L | 43.99384966 gal (imp) |
| 208 L | 45.75360365 gal (imp) |
| 500 L | 109.9846241 gal (imp) |
| 1000 L | 219.9692483 gal (imp) |
Where it's used
UK fuel economy is still quoted in miles per imperial gallon, so litres are converted to imperial gallons for comparisons.
Liter to other volume units
| Conversion | 1 L equals |
|---|---|
| liter to cubic meter | 0.001 m³ |
| liter to milliliter | 1000 mL |
| liter to cubic centimeter | 1000 cm³ |
| liter to cubic foot | 0.03531466672 ft³ |
| liter to cubic inch | 61.02374409 in³ |
| liter to US gallon | 0.2641720524 gal (US) |
| liter to imperial gallon | 0.2199692483 gal (imp) |
Frequently asked questions
How many liters are in an imperial gallon?
Exactly 4.54609 L.
How many imperial gallons are in 1 liter?
1 L = 0.2199692483 gal (imp).
How do I convert liters to imperial gallons?
Multiply the value in L by 0.2199692483, or divide it by 4.54609. For example, 15 L × 0.2199692483 = 3.299538724 gal (imp).
Is the L to gal (imp) conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8, non-SI units accepted for use with the SI.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "gallon [Canadian and U.K. (Imperial)]".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Liters to Imperial Gallons. Retrieved October 17, 2026, from https://scientificconverters.com/volume/liters-to-imperial-gallons/
IEEE
Scientific Converters, "Convert Liters to Imperial Gallons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/volume/liters-to-imperial-gallons/