• km   dm
  •  
Rounding Mode:

The kilometer, a unit of length in the metric system, is standard for measuring distances in most of the world, but did you know that it was officially defined in terms of the Earth’s geometry? Originally, a kilometer was devised as one ten-millionth of the distance from the Equator to the North Pole, a fraction of the Earth’s meridian. This fascinating origin reflects humanity’s quest to make sense of the vastness of our planet.

Moreover, the metric system’s global reign didn’t happen overnight. The U.S. is one of the few countries primarily using miles, yet if you’re ever curious, consider that a marathon—26.2 miles—is approximately 42.195 kilometers! Imagine, the very races where athletes push the limits of human endurance are framed by this historical unit, rooting the challenge in a nearly ten-thousand-year-old tradition.

Did you know?

The decimeter, though not as commonly used as its metric siblings like the meter or centimeter, plays a fascinating role in measurement. Originating from the French word “décimètre,” it represents a tenth of a meter and offers a convenient intermediary size for measurements that are neither too large for centimeters nor too granular for meters. Interestingly, the decimeter turns up in varied scientific fields, particularly in hydrology and oceanography, to gauge wave heights, accurately expressing dimensions in a more adaptable and manageable manner.

Despite its infrequent usage in everyday scenarios, the decimeter’s utility shines in education, especially in teaching the metric system. By understanding this unit, students gain an insight into the decimal nature of metric conversions, enhancing their mathematical fluency and grasp of scaling in different scientific contexts.

> Kilometers to Decimeters Conversion Table

Kilometers Decimeters
0 km 0 dm
1 km 10000 dm
2 km 20000 dm
3 km 30000 dm
4 km 40000 dm
5 km 50000 dm
6 km 60000 dm
7 km 70000 dm
8 km 80000 dm
9 km 90000 dm
10 km 100000 dm
11 km 110000 dm
12 km 120000 dm
13 km 130000 dm
14 km 140000 dm
15 km 150000 dm
16 km 160000 dm
17 km 170000 dm
18 km 180000 dm
19 km 190000 dm
20 km 200000 dm
21 km 210000 dm
22 km 220000 dm
23 km 230000 dm
24 km 240000 dm
25 km 250000 dm
26 km 260000 dm
27 km 270000 dm
28 km 280000 dm
29 km 290000 dm
30 km 300000 dm
31 km 310000 dm
32 km 320000 dm
33 km 330000 dm
34 km 340000 dm
35 km 350000 dm
36 km 360000 dm
37 km 370000 dm
38 km 380000 dm
39 km 390000 dm
40 km 400000 dm
41 km 410000 dm
42 km 420000 dm
43 km 430000 dm
44 km 440000 dm
45 km 450000 dm
46 km 460000 dm
47 km 470000 dm
48 km 480000 dm
49 km 490000 dm
50 km 500000 dm
51 km 510000 dm
52 km 520000 dm
53 km 530000 dm
54 km 540000 dm
55 km 550000 dm
56 km 560000 dm
57 km 570000 dm
58 km 580000 dm
59 km 590000 dm
60 km 600000 dm
61 km 610000 dm
62 km 620000 dm
63 km 630000 dm
64 km 640000 dm
65 km 650000 dm
66 km 660000 dm
67 km 670000 dm
68 km 680000 dm
69 km 690000 dm
70 km 700000 dm
71 km 710000 dm
72 km 720000 dm
73 km 730000 dm
74 km 740000 dm
75 km 750000 dm
76 km 760000 dm
77 km 770000 dm
78 km 780000 dm
79 km 790000 dm
80 km 800000 dm
81 km 810000 dm
82 km 820000 dm
83 km 830000 dm
84 km 840000 dm
85 km 850000 dm
86 km 860000 dm
87 km 870000 dm
88 km 880000 dm
89 km 890000 dm
90 km 900000 dm
91 km 910000 dm
92 km 920000 dm
93 km 930000 dm
94 km 940000 dm
95 km 950000 dm
96 km 960000 dm
97 km 970000 dm
98 km 980000 dm
99 km 990000 dm
100 km 1000000 dm