Convert British MPG to American MPG

Fuel Economy
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40 British MPG =
33.31 U.S. MPG
About

The United Kingdom uses a different gallon than the United States. As a result, miles per gallon measurements are different. This calculator will allow you to convert a British MPG rating to an American one.

Definitions
MPGus = 3.785411784* MPGuk
4.54609

U.S. Gallon = 3.785411784 Liters

Imperial Gallon = 4.54609 Liters

U.K. MPG to U.S. MPG Conversion Table
UK mpg US mpg
1 0.83
2 1.67
3 2.50
4 3.33
5 4.16
6 5.00
7 5.83
8 6.66
9 7.49
10 8.33
11 9.16
12 9.99
13 10.82
14 11.66
15 12.49
16 13.32
17 14.16
18 14.99
19 15.82
20 16.65
21 17.49
22 18.32
23 19.15
24 19.98
25 20.82
26 21.65
27 22.48
28 23.31
29 24.15
30 24.98
31 25.81
32 26.65
33 27.48
34 28.31
UK mpg US mpg
35 29.14
36 29.98
37 30.81
38 31.64
39 32.47
40 33.31
41 34.14
42 34.97
43 35.80
44 36.64
45 37.47
46 38.30
47 39.14
48 39.97
49 40.80
50 41.63
51 42.47
52 43.30
53 44.13
54 44.96
55 45.80
56 46.63
57 47.46
58 48.30
59 49.13
60 49.96
61 50.79
62 51.63
63 52.46
64 53.29
65 54.12
66 54.96
67 55.79
68 56.62
UK mpg US mpg
69 57.45
70 58.29
71 59.12
72 59.95
73 60.79
74 61.62
75 62.45
76 63.28
77 64.12
78 64.95
79 65.78
80 66.61
81 67.45
82 68.28
83 69.11
84 69.94
85 70.78
86 71.61
87 72.44
88 73.28
89 74.11
90 74.94
91 75.77
92 76.61
93 77.44
94 78.27
95 79.10
96 79.94
97 80.77
98 81.60
99 82.43
100 83.27