• mm/h   knot
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Rounding Mode:

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.

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.

> Millimeters per hour to Knots Conversion Table

Millimeters per hour Knots
0 mm/h 0 knot
1000 mm/h 0.000539957 knot
2000 mm/h 0.00107991 knot
3000 mm/h 0.00161987 knot
4000 mm/h 0.00215983 knot
5000 mm/h 0.00269979 knot
6000 mm/h 0.00323974 knot
7000 mm/h 0.0037797 knot
8000 mm/h 0.00431966 knot
9000 mm/h 0.00485961 knot
10000 mm/h 0.00539957 knot
11000 mm/h 0.00593953 knot
12000 mm/h 0.00647948 knot
13000 mm/h 0.00701944 knot
14000 mm/h 0.0075594 knot
15000 mm/h 0.00809936 knot
16000 mm/h 0.00863931 knot
17000 mm/h 0.00917927 knot
18000 mm/h 0.00971923 knot
19000 mm/h 0.0102592 knot
20000 mm/h 0.0107991 knot
21000 mm/h 0.0113391 knot
22000 mm/h 0.0118791 knot
23000 mm/h 0.012419 knot
24000 mm/h 0.012959 knot
25000 mm/h 0.0134989 knot
26000 mm/h 0.0140389 knot
27000 mm/h 0.0145788 knot
28000 mm/h 0.0151188 knot
29000 mm/h 0.0156588 knot
30000 mm/h 0.0161987 knot
31000 mm/h 0.0167387 knot
32000 mm/h 0.0172786 knot
33000 mm/h 0.0178186 knot
34000 mm/h 0.0183585 knot
35000 mm/h 0.0188985 knot
36000 mm/h 0.0194385 knot
37000 mm/h 0.0199784 knot
38000 mm/h 0.0205184 knot
39000 mm/h 0.0210583 knot
40000 mm/h 0.0215983 knot
41000 mm/h 0.0221382 knot
42000 mm/h 0.0226782 knot
43000 mm/h 0.0232182 knot
44000 mm/h 0.0237581 knot
45000 mm/h 0.0242981 knot
46000 mm/h 0.024838 knot
47000 mm/h 0.025378 knot
48000 mm/h 0.0259179 knot
49000 mm/h 0.0264579 knot
50000 mm/h 0.0269979 knot
51000 mm/h 0.0275378 knot
52000 mm/h 0.0280778 knot
53000 mm/h 0.0286177 knot
54000 mm/h 0.0291577 knot
55000 mm/h 0.0296976 knot
56000 mm/h 0.0302376 knot
57000 mm/h 0.0307775 knot
58000 mm/h 0.0313175 knot
59000 mm/h 0.0318575 knot
60000 mm/h 0.0323974 knot
61000 mm/h 0.0329374 knot
62000 mm/h 0.0334773 knot
63000 mm/h 0.0340173 knot
64000 mm/h 0.0345572 knot
65000 mm/h 0.0350972 knot
66000 mm/h 0.0356372 knot
67000 mm/h 0.0361771 knot
68000 mm/h 0.0367171 knot
69000 mm/h 0.037257 knot
70000 mm/h 0.037797 knot
71000 mm/h 0.0383369 knot
72000 mm/h 0.0388769 knot
73000 mm/h 0.0394169 knot
74000 mm/h 0.0399568 knot
75000 mm/h 0.0404968 knot
76000 mm/h 0.0410367 knot
77000 mm/h 0.0415767 knot
78000 mm/h 0.0421166 knot
79000 mm/h 0.0426566 knot
80000 mm/h 0.0431966 knot
81000 mm/h 0.0437365 knot
82000 mm/h 0.0442765 knot
83000 mm/h 0.0448164 knot
84000 mm/h 0.0453564 knot
85000 mm/h 0.0458963 knot
86000 mm/h 0.0464363 knot
87000 mm/h 0.0469763 knot
88000 mm/h 0.0475162 knot
89000 mm/h 0.0480562 knot
90000 mm/h 0.0485961 knot
91000 mm/h 0.0491361 knot
92000 mm/h 0.049676 knot
93000 mm/h 0.050216 knot
94000 mm/h 0.050756 knot
95000 mm/h 0.0512959 knot
96000 mm/h 0.0518359 knot
97000 mm/h 0.0523758 knot
98000 mm/h 0.0529158 knot
99000 mm/h 0.0534557 knot
100000 mm/h 0.0539957 knot