Centimeters to Kilometers Converter (cm to km)

Need to change centimeters (cm) into kilometers (km) quickly? Enter your number and get the result right away. If you want to convert the other way, switch the units and use the same tool.

This converter keeps things simple. It gives a clean answer you can trust, without extra steps.

Perfect for:

• homework and exams
• quick work calculations
• distance checks and planning
• daily measurement needs

If you often convert units, browse our full collection of unit conversion tools.

What Are Centimeters and Kilometers?

What is a Centimeter (cm)?

A centimeter is a metric unit used for small lengths. It is one hundredth of a meter.

Simple meaning:

1 cm = 0.01 m

Centimeters are used for height, clothing measurements, furniture size, and everyday objects. If you want quick related conversions, you can use:

• Convert cm to meters
• Convert cm to feet
• Convert cm to millimeters
• convert cm to miles

What is a Kilometer (km)?

A kilometer is a metric unit used for longer distances. It equals 1,000 meters.

Simple meaning:

1 km = 1,000 m

Also, 1 km is about 0.6214 miles

Kilometers are common for road distance, travel routes, and the space between places. For nearby distance conversions, these tools help:

• convert kilometers to meters
• convert meters to kilometers
• convert kilometers to miles
• convert miles to kilometers
• convert km to feet
• convert kilometers to yards

How to Convert Centimeters to Kilometers

To convert cm to km, you only need one step: divide by 100,000.

Key conversion

1 km = 100,000 cm

Formula

km = cm ÷ 100,000

Example

If you have 20 cm:

20 ÷ 100,000 = 0.0002 km

This method is reliable and works every time.

How many centimeters are in 1 kilometer?

1 kilometer = 100,000 centimeters

So: 1 km = 100,000 cm

How many kilometers are in 1 centimeter?

1 centimeter = 0.00001 kilometers

So: 1 cm = 0.00001 km

Example: Convert 8 cm to km

To convert 8 cm to km, divide by 100,000:

8 ÷ 100,000 = 0.00008 km

Simple rule to remember: cm to km means divide by 100,000.

If you also need the reverse conversion, use this quick tool: kilometers to centimeters. For very small-length conversions, this can also help: nanometers to centimeters.