Kilometres to centimetres converter
Centimetres (cm)
1 kilometre = 100,000 centimetres
How to convert kilometres to centimetres
cm = km × 100000
Multiply the number of kilometres by 100000 to get centimetres. Going the other way, divide by 100000 (or multiply by 0.00001).
One kilometre is exactly defined as 100000 centimetres (to 12 significant figures), and one centimetre is 0.00001 kilometres.
Worked examples
- Convert 5 kilometres: 5 × 100000 = 500,000 500,000 centimetres.
- Convert 12.5 kilometres: 12.5 × 100000 = 1,250,000 1,250,000 centimetres.
- Convert 250 kilometres: 250 × 100000 = 25,000,000 25,000,000 centimetres.
Quick-reference table
| km | cm |
|---|---|
| 1 | 100,000 |
| 2 | 200,000 |
| 3 | 300,000 |
| 5 | 500,000 |
| 10 | 1,000,000 |
| 15 | 1,500,000 |
| 20 | 2,000,000 |
| 25 | 2,500,000 |
| 50 | 5,000,000 |
| 75 | 7,500,000 |
| 100 | 10,000,000 |
| 1,000 | 100,000,000 |
| cm | km |
|---|---|
| 1 | 0.00001 |
| 2 | 0.00002 |
| 3 | 0.00003 |
| 5 | 0.00005 |
| 10 | 0.0001 |
| 15 | 0.00015 |
| 20 | 0.0002 |
| 25 | 0.00025 |
| 50 | 0.0005 |
| 75 | 0.00075 |
| 100 | 0.001 |
| 1,000 | 0.01 |
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Frequently asked questions
How many centimetres are in 1 kilometre?
1 kilometre equals 100,000 centimetres.
What is the formula to convert kilometres to centimetres?
Use cm = km × 100000. Multiply the number of kilometres by 100000 to get centimetres. Going the other way, divide by 100000 (or multiply by 0.00001).
What is 100 kilometres in centimetres?
100 kilometres is 10,000,000 centimetres.