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Miles per US Gallon to Miles per Imperial Gallon converter

Convert mpg (US) to mpg (UK) instantly. Type any value and get the result in miles per imperial gallon. 1 mpg (US) = 1.20095 mpg (UK).

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Fuel Economy›mpg (US) → mpg (UK)
From
To
result below ↓
1 mpg (US)=
1.20095mpg (UK)
formula1 mpg (US) = 1.20095 mpg (UK)

Common miles per us gallon → miles per imperial gallon

=1.20095 mpg (UK)
=2.4019 mpg (UK)
=6.00475 mpg (UK)
=12.0095 mpg (UK)
=24.019 mpg (UK)
=60.0475 mpg (UK)
=120.095 mpg (UK)
=600.475 mpg (UK)
=1,200.95 mpg (UK)

Need a different value? .

Convert the other way
Miles per Imperial Gallon to Miles per US Gallon

How to convert miles per us gallon to miles per imperial gallon

Miles per US Gallon and Miles per Imperial Gallon aren’t a flat multiple of each other — fuel economy mixes efficiency (higher is better) and consumption (lower is better), which are inversely related. Use the formula below.

Formula
mpg (UK) = mpg (US) × 1.20095

For example:

  • →5 mpg (US) = 6.00475 mpg (UK)
  • →100 mpg (US) = 120.095 mpg (UK)

Quick reference

  • ▸1 mpg (US) = 1.20095 mpg (UK)
  • ▸1 mpg (UK) = 0.832674 mpg (US)

When you need to convert mpg (US) to mpg (UK)

  • ·Comparing car efficiency across regions (mpg vs L/100 km).
  • ·Road-trip budgeting and fuel-cost estimates.
  • ·Buying a car abroad — spec sheets use local units.
  • ·Fleet management and logistics.
  • ·Tracking your own mileage over time.

Frequently asked

How many miles per imperial gallon are in 1 miles per us gallon?
These units don’t convert by a flat ratio, but 1 mpg (US) corresponds to 1.20095 mpg (UK) via the formula mpg (UK) = mpg (US) × 1.20095.
How do I convert mpg (US) to mpg (UK) in my head?
Use the formula mpg (UK) = mpg (US) × 1.20095 — there’s no single multiplier.
What is the formula for miles per us gallon to miles per imperial gallon?
mpg (UK) = mpg (US) × 1.20095.
What is the reverse — how many miles per us gallon in 1 miles per imperial gallon?
1 mpg (UK) corresponds to 0.832674 mpg (US) via the reverse formula.

Related conversions

Miles per Imperial Gallon to Miles per US Gallon
1 mpg (UK) = 0.832674 mpg (US)
Miles per US Gallon to Kilometers per Liter
1 mpg (US) = 0.425144 km/L
Miles per US Gallon to Liters per 100 km
1 mpg (US) = 235.215 L/100km
Kilometers per Liter to Miles per Imperial Gallon
1 km/L = 2.82481 mpg (UK)
Liters per 100 km to Miles per Imperial Gallon
1 L/100km = 282.481 mpg (UK)
Miles per Imperial Gallon to Kilometers per Liter
1 mpg (UK) = 0.354006 km/L
Miles per Imperial Gallon to Liters per 100 km
1 mpg (UK) = 282.481 L/100km
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