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Fuel Economy

Miles per Gallon (US) → Miles per Gallon (UK)

mpg → mpg (UK)

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Based on U.S. National Institute of Standards

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Miles per Gallon (US) to Miles per Gallon (UK) Formula

To convert from Miles per Gallon (US) to Miles per Gallon (UK), you can use the following formula:

Miles per Gallon (UK) = Miles per Gallon (US) × NaN

This means you need to multiply your Miles per Gallon (US) value by NaN to get the equivalent value in Miles per Gallon (UK).

mpg → mpg (UK) Reference Table

mpg mpg (UK)
0.001 mpg 0.001200949924 mpg (UK)
0.002 mpg 0.002401899849 mpg (UK)
0.003 mpg 0.003602849773 mpg (UK)
0.004 mpg 0.004803799697 mpg (UK)
0.005 mpg 0.006004749621 mpg (UK)
0.006 mpg 0.007205699546 mpg (UK)
0.007 mpg 0.00840664947 mpg (UK)
0.008 mpg 0.009607599394 mpg (UK)
0.009 mpg 0.01080854932 mpg (UK)
0.01 mpg 0.01200949924 mpg (UK)
0.02 mpg 0.02401899849 mpg (UK)
0.03 mpg 0.03602849773 mpg (UK)
0.04 mpg 0.04803799697 mpg (UK)
0.05 mpg 0.06004749621 mpg (UK)
0.06 mpg 0.07205699546 mpg (UK)
0.07 mpg 0.0840664947 mpg (UK)
0.08 mpg 0.09607599394 mpg (UK)
0.09 mpg 0.1080854932 mpg (UK)
0.1 mpg 0.1200949924 mpg (UK)
0.2 mpg 0.2401899849 mpg (UK)
0.3 mpg 0.3602849773 mpg (UK)
0.4 mpg 0.4803799697 mpg (UK)
0.5 mpg 0.6004749621 mpg (UK)
0.6 mpg 0.7205699546 mpg (UK)
0.7 mpg 0.840664947 mpg (UK)
0.8 mpg 0.9607599394 mpg (UK)
0.9 mpg 1.080854932 mpg (UK)
1 mpg 1.200949924 mpg (UK)
1.5 mpg 1.801424886 mpg (UK)
2 mpg 2.401899849 mpg (UK)
2.5 mpg 3.002374811 mpg (UK)
3 mpg 3.602849773 mpg (UK)
3.5 mpg 4.203324735 mpg (UK)
4 mpg 4.803799697 mpg (UK)
4.5 mpg 5.404274659 mpg (UK)
5 mpg 6.004749621 mpg (UK)
5.5 mpg 6.605224584 mpg (UK)
6 mpg 7.205699546 mpg (UK)
6.5 mpg 7.806174508 mpg (UK)
7 mpg 8.40664947 mpg (UK)
7.5 mpg 9.007124432 mpg (UK)
8 mpg 9.607599394 mpg (UK)
8.5 mpg 10.20807436 mpg (UK)
9 mpg 10.80854932 mpg (UK)
9.5 mpg 11.40902428 mpg (UK)
10 mpg 12.00949924 mpg (UK)
11 mpg 13.21044917 mpg (UK)
12 mpg 14.41139909 mpg (UK)
13 mpg 15.61234902 mpg (UK)
14 mpg 16.81329894 mpg (UK)
15 mpg 18.01424886 mpg (UK)
16 mpg 19.21519879 mpg (UK)
17 mpg 20.41614871 mpg (UK)
18 mpg 21.61709864 mpg (UK)
19 mpg 22.81804856 mpg (UK)
20 mpg 24.01899849 mpg (UK)
25 mpg 30.02374811 mpg (UK)
30 mpg 36.02849773 mpg (UK)
35 mpg 42.03324735 mpg (UK)
40 mpg 48.03799697 mpg (UK)
45 mpg 54.04274659 mpg (UK)
50 mpg 60.04749621 mpg (UK)
55 mpg 66.05224584 mpg (UK)
60 mpg 72.05699546 mpg (UK)
65 mpg 78.06174508 mpg (UK)
70 mpg 84.0664947 mpg (UK)
75 mpg 90.07124432 mpg (UK)
80 mpg 96.07599394 mpg (UK)
85 mpg 102.0807436 mpg (UK)
90 mpg 108.0854932 mpg (UK)
95 mpg 114.0902428 mpg (UK)
100 mpg 120.0949924 mpg (UK)
120 mpg 144.1139909 mpg (UK)
125 mpg 150.1187405 mpg (UK)
130 mpg 156.1234902 mpg (UK)
140 mpg 168.1329894 mpg (UK)
150 mpg 180.1424886 mpg (UK)
160 mpg 192.1519879 mpg (UK)
175 mpg 210.1662368 mpg (UK)
180 mpg 216.1709864 mpg (UK)
200 mpg 240.1899849 mpg (UK)
225 mpg 270.213733 mpg (UK)
250 mpg 300.2374811 mpg (UK)
275 mpg 330.2612292 mpg (UK)
300 mpg 360.2849773 mpg (UK)
350 mpg 420.3324735 mpg (UK)
400 mpg 480.3799697 mpg (UK)
450 mpg 540.4274659 mpg (UK)
500 mpg 600.4749621 mpg (UK)
600 mpg 720.5699546 mpg (UK)
700 mpg 840.664947 mpg (UK)
750 mpg 900.7124432 mpg (UK)
800 mpg 960.7599394 mpg (UK)
900 mpg 1080.854932 mpg (UK)
1000 mpg 1200.949924 mpg (UK)
1200 mpg 1441.139909 mpg (UK)
1250 mpg 1501.187405 mpg (UK)
1500 mpg 1801.424886 mpg (UK)
1750 mpg 2101.662368 mpg (UK)
2000 mpg 2401.899849 mpg (UK)
2500 mpg 3002.374811 mpg (UK)
3000 mpg 3602.849773 mpg (UK)
4000 mpg 4803.799697 mpg (UK)
4500 mpg 5404.274659 mpg (UK)
5000 mpg 6004.749621 mpg (UK)
6000 mpg 7205.699546 mpg (UK)
7000 mpg 8406.64947 mpg (UK)
7500 mpg 9007.124432 mpg (UK)
8000 mpg 9607.599394 mpg (UK)
9000 mpg 10808.54932 mpg (UK)
10000 mpg 12009.49924 mpg (UK)
15000 mpg 18014.24886 mpg (UK)
20000 mpg 24018.99849 mpg (UK)
25000 mpg 30023.74811 mpg (UK)
50000 mpg 60047.49621 mpg (UK)
75000 mpg 90071.24432 mpg (UK)
100000 mpg 120094.9924 mpg (UK)

Why Convert Miles per Gallon (US) to Miles per Gallon (UK)?

Converting between miles per gallon (us) (mpg) and miles per gallon (uk) (mpg (UK)) is one of the most common fuel economy conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert mpg to mpg (UK) saves time and prevents errors.

Fuel economy conversions between mpg and mpg (UK) help drivers and fleet managers compare vehicle efficiency across different standards. While the US uses miles per gallon (MPG), much of the world uses liters per 100 kilometers (L/100km), which measures consumption rather than distance. Converting these figures gives prospective car buyers a true comparison of operating costs and environmental impact. For international logistics companies, standardizing fuel economy data allows for better budget forecasting and route optimization. Understanding these differences is key to making informed decisions about vehicle purchases and sustainable driving habits.

How to Convert Miles per Gallon (US) to Miles per Gallon (UK)

To convert miles per gallon (us) to miles per gallon (uk), use the following formula:

mpg (UK) = mpg × 1.200949924

Example: 1 mpg = 1.200949924 mpg (UK)

For example, 5 mpg = 6.004749621 mpg (UK), 10 mpg = 12.00949924 mpg (UK), and 100 mpg = 120.0949924 mpg (UK). For larger values, 1000 mpg = 1200.949924 mpg (UK). Conversely, 1 mpg (UK) = 0.8326741855 mpg. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Mistakes to Avoid

  • Confusing mpg (US) with mpg (UK): US gallons (3.785 L) are smaller than UK gallons (4.546 L). A car rated 30 mpg (US) is actually about 36 mpg (UK). Always check which gallon is being used.
  • Inverting L/100km and km/L: These are reciprocal — lower L/100km means better fuel economy, while higher km/L means better economy. Don't assume a smaller number is always worse.
  • Mixing metric and imperial in calculations: When calculating fuel costs across countries, ensure you convert both the distance (km vs miles) AND the volume (liters vs gallons) consistently.

Pro Tips

  • Quick L/100km to mpg estimate: Divide 235 by L/100km to get approximate US mpg. Example: 8 L/100km ≈ 235/8 ≈ 29.4 mpg.
  • Real-world vs rated economy: Official fuel economy ratings are tested under ideal conditions. Real-world consumption is typically 10-20% higher. Factor this in when comparing vehicles.
  • Electric vehicle equivalent: EVs use kWh/100km instead of L/100km. A typical EV uses 15-20 kWh/100km, equivalent to roughly 1.5-2.0 L/100km in energy terms.

What is a Mile per Gallon (US)?

Miles per US Gallon.

Fuel economy (US).

What is a Mile per Gallon (UK)?

Miles per UK Gallon.

Fuel economy (UK).

Frequently Asked Questions

Fuel Economy More Conversions

km/L → mpgmpg → km/LL/100km → mpgmpg → L/100kmkm/L → L/100kmL/100km → km/Lmpg (UK) → mpgmpg (UK) → L/100kmL/100km → mpg (UK)mpg (UK) → km/Lkm/L → mpg (UK)

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