45 cm = 0.00045 km. To convert centimeters to kilometers, divide by 100,000: 45 ÷ 100,000 = 0.00045.
How to convert centimeters to kilometers
km = cm × 0.00001
- 1 cm = 0.00001 km (and 1 km = 100,000 cm).
- Multiply the amount by the factor: 45 × 0.00001 = 0.00045.
- Answer: 45 cm = 0.00045 km.
Shortcut: dividing by 100,000 gives the same result as multiplying by 0.00001.
Centimeters to Kilometers table
| Centimeters (cm) | Kilometers (km) |
|---|---|
| 40 cm | 0.0004 km |
| 41 cm | 0.00041 km |
| 42 cm | 0.00042 km |
| 43 cm | 0.00043 km |
| 44 cm | 0.00044 km |
| 45 cm | 0.00045 km |
| 46 cm | 0.00046 km |
| 47 cm | 0.00047 km |
| 48 cm | 0.00048 km |
| 49 cm | 0.00049 km |
| 50 cm | 0.0005 km |
| cm | km |
|---|---|
| 1 cm | 0.00001 km |
| 5 cm | 0.00005 km |
| 10 cm | 0.0001 km |
| 50 cm | 0.0005 km |
| 100 cm | 0.001 km |
| 1,000 cm | 0.01 km |
Good to know
1 inch = 2.54 cm exactly; 1 cm = 10 mm; 1 m = 100 cm; 1 foot = 12 inches = 30.48 cm.