Us Mpg to Uk Mpg
US miles per gallon states how far a vehicle travels per US gallon of fuel, the standard fuel economy rating in the US. Imperial miles per gallon uses the larger UK gallon, so the same vehicle shows a higher mpg figure than in the US system. 1 mpg equals ≈1.20095 mpg UK, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to fuel economy, measured here against fuel economy's base unit (L/100km) — every other fuel economy unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
mpg UK = mpg × ≈1.20095
mpg = mpg UK × ≈0.832674
Worked example: 5 mpg × ≈1.20095 = ≈6.00475 mpg UK.
Conversion table
| MPG (US) (mpg) | MPG (UK) (mpg UK) |
|---|---|
| 1 mpg | ≈1.20095 mpg UK |
| 2 mpg | ≈2.4019 mpg UK |
| 3 mpg | ≈3.60285 mpg UK |
| 5 mpg | ≈6.00475 mpg UK |
| 10 mpg | ≈12.0095 mpg UK |
| 20 mpg | ≈24.019 mpg UK |
| 25 mpg | ≈30.0237 mpg UK |
| 50 mpg | ≈60.0475 mpg UK |
| 100 mpg | ≈120.095 mpg UK |
| 250 mpg | ≈300.237 mpg UK |
| 500 mpg | ≈600.475 mpg UK |
| 1,000 mpg | ≈1,200.95 mpg UK |
Frequently asked
- How many MPG (UK) in a mpg (us)?
- 1 mpg equals ≈1.20095 mpg UK.
- How do I convert MPG (US) to MPG (UK)?
- Multiply the value in mpg by ≈1.20095 to get mpg UK. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — MPG (US) and MPG (UK) are both defined by a fixed conversion factor to fuel economy's base unit (L/100km), so the result shown is exact to the precision displayed, not an approximation.