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The mile per hour, commonly abbreviated as mph, is a unit of speed originating from the British imperial system and widely used in the United States and the United Kingdom. It’s fascinating to know that the concept of mph has historical significance dating back to the invention of the first automobiles in the late 19th century. The iconic cars of the 1920s, often called “classic cars,” were among the first to publicly advertise their capabilities in mph, including models like the Ford Model T, which had a top speed of about 45 mph.

Interestingly, mph is still the primary speed measurement unit for most road signage in countries such as the US and the UK, even while the rest of the world predominantly uses kilometers per hour (kph). The land-speed record attempts, including those made with the supersonic car “ThrustSSC,” which achieved an astonishing 763 mph in 1997, also emphasize the significance of this unit in measuring extreme speeds.

Did you know?

The knot, a unit of speed equal to one nautical mile per hour, has its origins in the age of sail. Mariners used a device known as the “common log” to measure a ship’s speed. This involved a wooden log attached to a rope with knots tied at uniform intervals. By counting the knots that passed through a sailor’s hands over a set period, they could determine the ship’s speed. Today, knots remain an essential measure in aviation and maritime contexts, underscoring how deeply it is embedded in navigation traditions.

Interestingly, the nautical mile, corresponding to one minute of latitude, is roughly 1.1508 miles. This makes the knot not only a unique unit for speed but also a reminder of the Earth’s curvature and ancient navigation skills.

> Miles per hour to Knots Conversion Table

Miles per hour Knots
0 mph 0 knot
2 mph 1.73795 knot
4 mph 3.47591 knot
6 mph 5.21386 knot
8 mph 6.95181 knot
10 mph 8.68977 knot
12 mph 10.42772 knot
14 mph 12.16567 knot
16 mph 13.90363 knot
18 mph 15.64158 knot
20 mph 17.37953 knot
22 mph 19.11748 knot
24 mph 20.85544 knot
26 mph 22.59339 knot
28 mph 24.33134 knot
30 mph 26.0693 knot
32 mph 27.80725 knot
34 mph 29.5452 knot
36 mph 31.28316 knot
38 mph 33.02111 knot
40 mph 34.75906 knot
42 mph 36.49702 knot
44 mph 38.23497 knot
46 mph 39.97292 knot
48 mph 41.71088 knot
50 mph 43.44883 knot
52 mph 45.18678 knot
54 mph 46.92474 knot
56 mph 48.66269 knot
58 mph 50.40064 knot
60 mph 52.13859 knot
62 mph 53.87655 knot
64 mph 55.6145 knot
66 mph 57.35245 knot
68 mph 59.09041 knot
70 mph 60.82836 knot
72 mph 62.56631 knot
74 mph 64.30427 knot
76 mph 66.04222 knot
78 mph 67.78017 knot
80 mph 69.51813 knot
82 mph 71.25608 knot
84 mph 72.99403 knot
86 mph 74.73199 knot
88 mph 76.46994 knot
90 mph 78.20789 knot
92 mph 79.94585 knot
94 mph 81.6838 knot
96 mph 83.42175 knot
98 mph 85.1597 knot
100 mph 86.89766 knot
102 mph 88.63561 knot
104 mph 90.37356 knot
106 mph 92.11152 knot
108 mph 93.84947 knot
110 mph 95.58742 knot
112 mph 97.32538 knot
114 mph 99.06333 knot
116 mph 100.80128 knot
118 mph 102.53924 knot
120 mph 104.27719 knot
122 mph 106.01514 knot
124 mph 107.7531 knot
126 mph 109.49105 knot
128 mph 111.229 knot
130 mph 112.96696 knot
132 mph 114.70491 knot
134 mph 116.44286 knot
136 mph 118.18081 knot
138 mph 119.91877 knot
140 mph 121.65672 knot
142 mph 123.39467 knot
144 mph 125.13263 knot
146 mph 126.87058 knot
148 mph 128.60853 knot
150 mph 130.34649 knot