Length · km → cm
Kilometres to Centimetres
Enter any value below to convert kilometres to centimetres instantly.
To
1 km = 100,000 cm
Conversion formula
How to convert km to cm
cm = km × 100,000
Multiply the kilometres value by 100,000 to get centimetres. The converter keeps extra precision internally and rounds only the displayed answer.
Converting kilometres to centimetres is useful when comparing dimensions, travel distances, building measurements or product specifications written in different measurement systems.
Worked example
Convert 10 km10 km = 1,000,000 cm
Calculated with the published formula. No estimated exchange rates or hidden rounding.
Common kilometres to centimetres values
| Kilometres (km) | Centimetres (cm) |
|---|---|
| 1 km | 100,000 cm |
| 5 km | 500,000 cm |
| 10 km | 1,000,000 cm |
| 25 km | 2,500,000 cm |
| 50 km | 5,000,000 cm |
| 100 km | 10,000,000 cm |
Quick answer
How many centimetres are in one kilometre?
One kilometre equals 100,000 cm.