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.
Foot per minute (ft/min) is a fascinating unit of speed often used in specialized fields such as HVAC (heating, ventilation, and air conditioning) systems to measure airflow and in other engineering applications. Interestingly, the roots of this unit can be traced back to the historical origins of the foot as a measurement, which dates back to ancient Egypt where the “royal foot” was utilized. Over centuries, various civilizations have adopted and adapted the foot, leading to the version we use today.
While it might seem esoteric, ft/min is crucial for ensuring precise calibrations and ensuring optimal efficiency in engineering contexts. For example, it is heavily relied upon to ensure the right amount of air changes per hour in room ventilation, directly affecting air quality and energy efficiency. Understanding and utilizing this unit connects us to a broader narrative of measurement evolution and technical precision.
Miles per hour | Feet per minute |
---|---|
0
mph
|
0
ft/min
|
2
mph
|
176.00056
ft/min
|
4
mph
|
352.00113
ft/min
|
6
mph
|
528.00169
ft/min
|
8
mph
|
704.00225
ft/min
|
10
mph
|
880.00282
ft/min
|
12
mph
|
1056.00338
ft/min
|
14
mph
|
1232.00394
ft/min
|
16
mph
|
1408.00451
ft/min
|
18
mph
|
1584.00507
ft/min
|
20
mph
|
1760.00563
ft/min
|
22
mph
|
1936.0062
ft/min
|
24
mph
|
2112.00676
ft/min
|
26
mph
|
2288.00732
ft/min
|
28
mph
|
2464.00788
ft/min
|
30
mph
|
2640.00845
ft/min
|
32
mph
|
2816.00901
ft/min
|
34
mph
|
2992.00957
ft/min
|
36
mph
|
3168.01014
ft/min
|
38
mph
|
3344.0107
ft/min
|
40
mph
|
3520.01126
ft/min
|
42
mph
|
3696.01183
ft/min
|
44
mph
|
3872.01239
ft/min
|
46
mph
|
4048.01295
ft/min
|
48
mph
|
4224.01352
ft/min
|
50
mph
|
4400.01408
ft/min
|
52
mph
|
4576.01464
ft/min
|
54
mph
|
4752.01521
ft/min
|
56
mph
|
4928.01577
ft/min
|
58
mph
|
5104.01633
ft/min
|
60
mph
|
5280.0169
ft/min
|
62
mph
|
5456.01746
ft/min
|
64
mph
|
5632.01802
ft/min
|
66
mph
|
5808.01859
ft/min
|
68
mph
|
5984.01915
ft/min
|
70
mph
|
6160.01971
ft/min
|
72
mph
|
6336.02028
ft/min
|
74
mph
|
6512.02084
ft/min
|
76
mph
|
6688.0214
ft/min
|
78
mph
|
6864.02196
ft/min
|
80
mph
|
7040.02253
ft/min
|
82
mph
|
7216.02309
ft/min
|
84
mph
|
7392.02365
ft/min
|
86
mph
|
7568.02422
ft/min
|
88
mph
|
7744.02478
ft/min
|
90
mph
|
7920.02534
ft/min
|
92
mph
|
8096.02591
ft/min
|
94
mph
|
8272.02647
ft/min
|
96
mph
|
8448.02703
ft/min
|
98
mph
|
8624.0276
ft/min
|
100
mph
|
8800.02816
ft/min
|
102
mph
|
8976.02872
ft/min
|
104
mph
|
9152.02929
ft/min
|
106
mph
|
9328.02985
ft/min
|
108
mph
|
9504.03041
ft/min
|
110
mph
|
9680.03098
ft/min
|
112
mph
|
9856.03154
ft/min
|
114
mph
|
10032.0321
ft/min
|
116
mph
|
10208.03267
ft/min
|
118
mph
|
10384.03323
ft/min
|
120
mph
|
10560.03379
ft/min
|
122
mph
|
10736.03436
ft/min
|
124
mph
|
10912.03492
ft/min
|
126
mph
|
11088.03548
ft/min
|
128
mph
|
11264.03604
ft/min
|
130
mph
|
11440.03661
ft/min
|
132
mph
|
11616.03717
ft/min
|
134
mph
|
11792.03773
ft/min
|
136
mph
|
11968.0383
ft/min
|
138
mph
|
12144.03886
ft/min
|
140
mph
|
12320.03942
ft/min
|
142
mph
|
12496.03999
ft/min
|
144
mph
|
12672.04055
ft/min
|
146
mph
|
12848.04111
ft/min
|
148
mph
|
13024.04168
ft/min
|
150
mph
|
13200.04224
ft/min
|
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