Formula
km to cm conversion formula
Use this relationship for a direct conversion:
cm = km x 100,000
Worked example
2 km = 200,000 cm.
Metric factors and international inch, foot, yard, mile, and nautical mile definitions are exact.
Length conversion
Convert Kilometer to Centimeter
1 kilometer (km) equals 100,000 centimeter (cm). Enter any value below to convert from km to cm.
Enter a value and choose units. Results update instantly.
1 km = 100,000 cm
All Length units
From 1 km| Unit | Value |
|---|---|
| Meter m | 1,000 |
| Kilometer km | 1 |
| Centimeter cm | 100,000 |
| Millimeter mm | 1,000,000 |
| Micrometer μm | 1,000,000,000 |
| Nanometer nm | 999,999,999,999.9998779297 |
| Inch in | 39,370.0787401575 |
| Foot ft | 3,280.8398950131 |
| Yard yd | 1,093.6132983377 |
| Mile mi | 0.6213711922 |
| Nautical mile nmi | 0.5399568035 |
| Light-year ly | 1.057000834e-13 |
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Quick reference
Kilometer to Centimeter table
| Kilometer (km) | Centimeter (cm) |
|---|---|
| 0.01 | 1,000 |
| 0.1 | 10,000 |
| 1 | 100,000 |
| 2 | 200,000 |
| 5 | 500,000 |
| 10 | 1,000,000 |
| 25 | 2,500,000 |
| 50 | 5,000,000 |
| 100 | 10,000,000 |
| 1,000 | 100,000,000 |
From unit
About the kilometer
One thousand meters.
Symbol: km
To unit
About the centimeter
One hundredth of a meter.
Symbol: cm
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Conversion standard
Definitions are checked against NIST SP 811: Guide for the Use of the SI. Calculations use full internal precision before display rounding.
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km to cm FAQ
How do you convert kilometer to centimeter?
Use the formula cm = km x 100,000. 1 kilometer (km) equals 100,000 centimeter (cm).
Is the km to cm conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.