Convert Between MPH and KMH

In the cycling world, there is a lot of cross-over between imperial (miles) and metric (kilometres) measurements. In the UK we are used to measuring road races and time trials in miles, and have a feel for what constitutes a slow or a fast speed - in miles per hour (MPH). However, all professional competition is reported in metric units, with speed measured as kilometres per hour (KMH). So, here are some useful metric/imperial conversions for cyclists:

Metric to Imperial

KMHMPH
20.012.4
21.013.1
22.013.7
23.014.3
24.014.9
25.015.5
26.016.2
27.016.8
28.017.4
29.018.0
30.018.6
31.019.3
32.019.9
33.020.5
34.021.1
35.021.8
36.022.4
37.023.0
38.023.6
39.024.2
40.024.9
41.025.5
42.026.1
43.026.7
44.027.3
45.028.0
46.028.6
47.029.2
48.029.8
49.030.5
50.031.1
51.031.7
52.032.3
53.032.9
54.033.6
55.034.2
56.034.8
57.035.4
58.036.0
59.036.7

Imperial to Metric

MPHKMH
10.016.1
11.017.7
12.019.3
13.020.9
14.022.5
15.024.1
16.025.7
17.027.4
18.029.0
19.030.6
20.032.2
21.033.8
22.035.4
23.037.0
24.038.6
25.040.2
26.041.8
27.043.4
28.045.1
29.046.7
30.048.3
31.049.9
32.051.5
33.053.1
34.054.7
35.056.3
36.057.9
37.059.5
38.061.1
39.062.8
40.064.4


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My name is John Swindells and I'm a keen recreational cyclist with a preference for long one-day rides. I've also previously dabbled in time trialling and cyclo-cross. See more of what I get up to on Strava!

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