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Miles per Imperial Gallon to Miles per US Gallon converter

Convert mpg (UK) to mpg (US) instantly. Type any value and get the result in miles per us gallon. 1 mpg (UK) = 0.832674 mpg (US).

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Fuel Economy›mpg (UK) → mpg (US)
From
To
result below ↓
1 mpg (UK)=
0.832674mpg (US)
formula1 mpg (UK) = 0.832674 mpg (US)

Common miles per imperial gallon → miles per us gallon

=0.832674 mpg (US)
=1.66535 mpg (US)
=4.16337 mpg (US)
=8.32674 mpg (US)
=16.6535 mpg (US)
=41.6337 mpg (US)
=83.2674 mpg (US)
=416.337 mpg (US)
=832.674 mpg (US)

Need a different value? .

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

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

Miles per Imperial Gallon and Miles per US 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 (US) = mpg (UK) × 0.832674

For example:

  • →5 mpg (UK) = 4.16337 mpg (US)
  • →100 mpg (UK) = 83.2674 mpg (US)

Quick reference

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

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

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

Related conversions

Miles per US Gallon to Miles per Imperial Gallon
1 mpg (US) = 1.20095 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
Kilometers per Liter to Miles per US Gallon
1 km/L = 2.35215 mpg (US)
Liters per 100 km to Miles per US Gallon
1 L/100km = 235.215 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
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