Litres to UK Gallons Converter
Convert litres (L) into UK gallons (imperial gallons) instantly.
Formula used: UK gallons = litres ÷ 4.54609
If you need a fast and accurate litres to gallons UK calculator, this page gives you both: a working converter and a practical guide. The UK gallon (also called the imperial gallon) is still used in many contexts, especially for fuel economy discussions, older equipment manuals, and UK-based measurements in everyday life.
How to convert litres to UK gallons
The conversion formula
To convert litres to UK gallons, divide the litres by 4.54609:
UK gallons = litres ÷ 4.54609
Example: if you have 9.09218 litres:
9.09218 ÷ 4.54609 = 2 UK gallons
Why this matters
- Fuel usage comparisons (especially when discussing older UK mpg figures)
- Home brewing and liquid storage references
- Vehicle and machinery documentation that uses imperial units
- Academic and technical contexts where UK measurement standards are required
Common litres to UK gallons conversions
| Litres (L) | UK Gallons (gal UK) |
|---|---|
| 1 | 0.21997 |
| 5 | 1.09984 |
| 10 | 2.19969 |
| 20 | 4.39938 |
| 25 | 5.49922 |
| 50 | 10.99844 |
| 100 | 21.99688 |
UK gallons vs US gallons
A very common mistake is confusing UK gallons with US gallons. They are not the same size:
- 1 UK gallon = 4.54609 litres
- 1 US gallon = 3.78541 litres
Because the UK gallon is larger, converting the same litres value will produce fewer UK gallons than US gallons.
Step-by-step example
Convert 35 litres to UK gallons
- Take your litres value: 35
- Divide by 4.54609
- 35 ÷ 4.54609 = 7.6989
So, 35 litres ≈ 7.70 UK gallons (rounded to two decimal places).
Tips for accurate unit conversion
- Use full precision (4.54609) for calculations before rounding.
- Round only at the end of your calculation.
- Check whether a source means UK gallons (imperial) or US gallons.
- For technical work, keep 4 to 6 decimal places where possible.
Frequently asked questions
Is this calculator for imperial gallons?
Yes. This calculator converts litres to UK imperial gallons.
Can I use it for fuel conversions?
Absolutely. It is suitable for fuel volume conversion where UK gallons are required.
What if I enter a decimal value?
Decimal values are supported, so you can enter values like 12.75 or 0.5 litres.
Final thoughts
A dependable litres to gallons UK calculator saves time and avoids mistakes, especially when moving between metric and imperial systems. Use the converter above whenever you need quick, accurate UK gallon results.