Millimeter per hour is a unit of speed often used to measure the rate of slow-moving phenomena, such as the growth of glaciers or the flow of sap in trees. Compared to everyday speeds like kilometers per hour, millimeters per hour might seem almost imperceptible, yet this unit is crucial for understanding natural processes that occur over extended periods.
Interestingly, certain glaciers move only a few millimeters per hour, but over weeks, months, and years, this glacial creep dramatically shapes entire landscapes. Meanwhile, indoor humidity control systems can measure evaporation rates in millimeters per hour to optimize environmental conditions. This seemingly minuscule unit underscores the importance of precision in scientific measurements, highlighting the incredible variance in speeds and the vast scales of time and distance we explore.
Inches per hour (iph) might seem like a peculiar unit of speed, but it plays a critical role in specific fields such as meteorology and engineering. This unit is often employed to measure precipitation rates, as it provides a precise gauge for predicting flooding events and soil absorption rates. By understanding precipitation in inches per hour, meteorologists can issue timely warnings and help communities prepare for extreme weather conditions.
Beyond weather, inches per hour can also be significant in manufacturing. For instance, when a machine needs to move with precision while applying adhesives or paints, the speed may be calibrated in iph to ensure accurate application and quality control. It’s a reminder of how even seemingly simple units have complex and vital applications across various industries.
| Millimeters per hour | Inches per hour |
|---|---|
0
mm/h
|
0
in/h
|
1000
mm/h
|
39.37714
in/h
|
2000
mm/h
|
78.75427
in/h
|
3000
mm/h
|
118.13141
in/h
|
4000
mm/h
|
157.50854
in/h
|
5000
mm/h
|
196.88568
in/h
|
6000
mm/h
|
236.26281
in/h
|
7000
mm/h
|
275.63995
in/h
|
8000
mm/h
|
315.01708
in/h
|
9000
mm/h
|
354.39422
in/h
|
10000
mm/h
|
393.77135
in/h
|
11000
mm/h
|
433.14849
in/h
|
12000
mm/h
|
472.52562
in/h
|
13000
mm/h
|
511.90276
in/h
|
14000
mm/h
|
551.27989
in/h
|
15000
mm/h
|
590.65703
in/h
|
16000
mm/h
|
630.03416
in/h
|
17000
mm/h
|
669.4113
in/h
|
18000
mm/h
|
708.78843
in/h
|
19000
mm/h
|
748.16557
in/h
|
20000
mm/h
|
787.5427
in/h
|
21000
mm/h
|
826.91984
in/h
|
22000
mm/h
|
866.29697
in/h
|
23000
mm/h
|
905.67411
in/h
|
24000
mm/h
|
945.05124
in/h
|
25000
mm/h
|
984.42838
in/h
|
26000
mm/h
|
1023.80551
in/h
|
27000
mm/h
|
1063.18265
in/h
|
28000
mm/h
|
1102.55978
in/h
|
29000
mm/h
|
1141.93692
in/h
|
30000
mm/h
|
1181.31405
in/h
|
31000
mm/h
|
1220.69119
in/h
|
32000
mm/h
|
1260.06832
in/h
|
33000
mm/h
|
1299.44546
in/h
|
34000
mm/h
|
1338.82259
in/h
|
35000
mm/h
|
1378.19973
in/h
|
36000
mm/h
|
1417.57686
in/h
|
37000
mm/h
|
1456.954
in/h
|
38000
mm/h
|
1496.33113
in/h
|
39000
mm/h
|
1535.70827
in/h
|
40000
mm/h
|
1575.0854
in/h
|
41000
mm/h
|
1614.46254
in/h
|
42000
mm/h
|
1653.83968
in/h
|
43000
mm/h
|
1693.21681
in/h
|
44000
mm/h
|
1732.59395
in/h
|
45000
mm/h
|
1771.97108
in/h
|
46000
mm/h
|
1811.34822
in/h
|
47000
mm/h
|
1850.72535
in/h
|
48000
mm/h
|
1890.10249
in/h
|
49000
mm/h
|
1929.47962
in/h
|
50000
mm/h
|
1968.85676
in/h
|
51000
mm/h
|
2008.23389
in/h
|
52000
mm/h
|
2047.61103
in/h
|
53000
mm/h
|
2086.98816
in/h
|
54000
mm/h
|
2126.3653
in/h
|
55000
mm/h
|
2165.74243
in/h
|
56000
mm/h
|
2205.11957
in/h
|
57000
mm/h
|
2244.4967
in/h
|
58000
mm/h
|
2283.87384
in/h
|
59000
mm/h
|
2323.25097
in/h
|
60000
mm/h
|
2362.62811
in/h
|
61000
mm/h
|
2402.00524
in/h
|
62000
mm/h
|
2441.38238
in/h
|
63000
mm/h
|
2480.75951
in/h
|
64000
mm/h
|
2520.13665
in/h
|
65000
mm/h
|
2559.51378
in/h
|
66000
mm/h
|
2598.89092
in/h
|
67000
mm/h
|
2638.26805
in/h
|
68000
mm/h
|
2677.64519
in/h
|
69000
mm/h
|
2717.02232
in/h
|
70000
mm/h
|
2756.39946
in/h
|
71000
mm/h
|
2795.77659
in/h
|
72000
mm/h
|
2835.15373
in/h
|
73000
mm/h
|
2874.53086
in/h
|
74000
mm/h
|
2913.908
in/h
|
75000
mm/h
|
2953.28513
in/h
|
76000
mm/h
|
2992.66227
in/h
|
77000
mm/h
|
3032.0394
in/h
|
78000
mm/h
|
3071.41654
in/h
|
79000
mm/h
|
3110.79367
in/h
|
80000
mm/h
|
3150.17081
in/h
|
81000
mm/h
|
3189.54794
in/h
|
82000
mm/h
|
3228.92508
in/h
|
83000
mm/h
|
3268.30222
in/h
|
84000
mm/h
|
3307.67935
in/h
|
85000
mm/h
|
3347.05649
in/h
|
86000
mm/h
|
3386.43362
in/h
|
87000
mm/h
|
3425.81076
in/h
|
88000
mm/h
|
3465.18789
in/h
|
89000
mm/h
|
3504.56503
in/h
|
90000
mm/h
|
3543.94216
in/h
|
91000
mm/h
|
3583.3193
in/h
|
92000
mm/h
|
3622.69643
in/h
|
93000
mm/h
|
3662.07357
in/h
|
94000
mm/h
|
3701.4507
in/h
|
95000
mm/h
|
3740.82784
in/h
|
96000
mm/h
|
3780.20497
in/h
|
97000
mm/h
|
3819.58211
in/h
|
98000
mm/h
|
3858.95924
in/h
|
99000
mm/h
|
3898.33638
in/h
|
100000
mm/h
|
3937.71351
in/h
|
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