Convert Centimeters to Kilometers

Enter the length in centimeters below to get the value converted to kilometers.

Results in Kilometers:

1 cm = 1.0E-5 km

Do you want to convert kilometers to centimeters?

How to Convert Centimeters to Kilometers

Tape measures can be used to measure units of length, and a calculator can be used to convert to another unit

To convert a centimeter measurement to a kilometer measurement, multiply the length by the conversion ratio. One centimeter is equal to 1.0E-5 kilometers, so use this simple formula to convert:

kilometers = centimeters × 1.0E-5

The length in kilometers is equal to the centimeters multiplied by 1.0E-5.

For example, here's how to convert 5 centimeters to kilometers using the formula above.

5 cm = (5 × 1.0E-5) = 5.0E-5 km

Our inch fraction calculator can add centimeters and kilometers together and it also automatically converts the results to US customary, imperial and SI metric values.

Centimeters and kilometers are both units used to measure length. Keep reading to learn more about each unit of measure.

Centimeters

One centimeter is equal to one-hundredth (1/100) of a meter, which is defined as the distance light travels in a vacuum in a ¹/_299,792,458 second time interval.

The centimeter, or centimetre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "centi" is the prefix for 10^-2. Centimeters can be abbreviated as cm, for example 1 centimeter can be written as 1 cm.

Metric rulers typically have 30 cm, which are represented by 30 large tick marks. To get a rough idea of the actual length of a centimeter, a standard pencil is just about 1cm thick.

Kilometers

One kilometer is equal to 1,000 meters, which are defined as the distance light travels in a vacuum in a ¹/_299,792,458 second time interval.

The kilometer, or kilometre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "kilo" is the prefix for 10³. Kilometers can be abbreviated as km, for example 1 kilometer can be written as 1 km.

We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.

If you need a ruler you can also download and print our free printable rulers, which include both imperial and metric measurements.

Centimeter Measurements and Equivalent Kilometer Conversions

Common centimeter values converted to the equivalent kilometer value
Centimeters	Kilometers
1 cm	0.00001 km
2 cm	0.00002 km
3 cm	0.00003 km
4 cm	0.00004 km
5 cm	0.00005 km
6 cm	0.00006 km
7 cm	0.00007 km
8 cm	0.00008 km
9 cm	0.00009 km
10 cm	0.0001 km
11 cm	0.00011 km
12 cm	0.00012 km
13 cm	0.00013 km
14 cm	0.00014 km
15 cm	0.00015 km
16 cm	0.00016 km
17 cm	0.00017 km
18 cm	0.00018 km
19 cm	0.00019 km
20 cm	0.0002 km
21 cm	0.00021 km
22 cm	0.00022 km
23 cm	0.00023 km
24 cm	0.00024 km
25 cm	0.00025 km
26 cm	0.00026 km
27 cm	0.00027 km
28 cm	0.00028 km
29 cm	0.00029 km
30 cm	0.0003 km
31 cm	0.00031 km
32 cm	0.00032 km
33 cm	0.00033 km
34 cm	0.00034 km
35 cm	0.00035 km
36 cm	0.00036 km
37 cm	0.00037 km
38 cm	0.00038 km
39 cm	0.00039 km
40 cm	0.0004 km