UK MPG to Liters per 100 km Converter
Fuel Economy conversion workspace
Enter a decimal, fraction or quick calculation — for example 12.5, 3/8 or (12*4)+6.5.
Batch conversionconvert up to 100 values at once
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Compare all fuel economy units
One input, every supported equivalent. Select any row as the main target.
| Unit | Equivalent | Target action |
|---|---|---|
| Liters per 100 km L/100 km | 40.35 | TargetSelected |
| Miles per Gallon (US) mpg | 5.83 | |
| Miles per Imperial Gallon (UK) mpg (UK) | 7 | SourceSource |
Use this UK-MPG-to-L/100-km converter for British vehicle figures and cross-border fuel comparisons where using the smaller US gallon would give the wrong answer.
Curated referenceFormula
L/100 km = 282.480936 ÷ UK mpg
Calculations use the central unit catalog and preserve precision until the result is formatted.
Reference conversions
Fixed reference values use en-US formatting and up to 12 significant digits.
| Input | From | To | Result |
|---|---|---|---|
| 20 | Miles per Imperial Gallon (UK) | Liters per 100 km | 14.1240468166 |
| 30 | Miles per Imperial Gallon (UK) | Liters per 100 km | 9.41603121106 |
| 40 | Miles per Imperial Gallon (UK) | Liters per 100 km | 7.0620234083 |
| 50 | Miles per Imperial Gallon (UK) | Liters per 100 km | 5.64961872664 |
| 60 | Miles per Imperial Gallon (UK) | Liters per 100 km | 4.70801560553 |
| 70 | Miles per Imperial Gallon (UK) | Liters per 100 km | 4.0354419476 |
Related fuel economy conversions
Curated references with worked examples, formulas and the full interactive converter.
Frequently asked questions
How do I convert miles per imperial gallon (uk) to liters per 100 km?
Use L/100 km = 282.480936 ÷ UK mpg. Enter a value in the calculator to keep full numeric precision until the result is formatted.
What is 1 mpg (UK) in L/100 km?
1 mpg (UK) equals 282.480936332 L/100 km.
Are the displayed results rounded?
The conversion uses the sourced catalog definitions and retains full JavaScript number precision until display formatting is applied.
Accuracy & transparency
Sources & methodology
Calculations keep full numeric precision until display formatting. These references describe the definitions, variants or factors used; links do not imply affiliation.
SI definitions and published coefficients for selected non-SI units.
Reference factors and named variants for commonly used units, including US liquid cooking measures and British stone.
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