1 Kecepatan Cahaya (c) sama dengan 299.792,458 km/s, dan 1 Kilometer per Detik (km/s) sama dengan 0,00000333564095 c.
| Kecepatan Cahaya | Kilometer per Detik |
|---|---|
| 0,01 c | 2.997,92458 km/s |
| 0,1 c | 29.979,2458 km/s |
| 1 c | 299.792,458 km/s |
| 2 c | 599.584,916 km/s |
| 3 c | 899.377,374 km/s |
| 4 c | 1.199.169,83 km/s |
| 5 c | 1.498.962,29 km/s |
| 6 c | 1.798.754,75 km/s |
| 7 c | 2.098.547,21 km/s |
| 8 c | 2.398.339,66 km/s |
| 9 c | 2.698.132,12 km/s |
| 10 c | 2.997.924,58 km/s |
| 20 c | 5.995.849,16 km/s |
| 30 c | 8.993.773,74 km/s |
| 40 c | 11.991.698,3 km/s |
| 50 c | 14.989.622,9 km/s |
| 60 c | 17.987.547,5 km/s |
| 70 c | 20.985.472,1 km/s |
| 80 c | 23.983.396,6 km/s |
| 90 c | 26.981.321,2 km/s |
| 100 c | 29.979.245,8 km/s |
| 200 c | 59.958.491,6 km/s |
| 300 c | 89.937.737,4 km/s |
| 500 c | 149.896.229 km/s |
| 1.000 c | 299.792.458 km/s |
| 10.000 c | 2.997.924.580 km/s |
| Milimeter per Detik | 299.792.458.000 mm/s |
| Sentimeter per Detik | 29.979.245.800 cm/s |
| Meter per Detik | 299.792.458 m/s |
| Kilometer per Jam | 1.079.252.849 km/h |
| Meter per Menit | 17.987.547.480 m/min |
| Kilometer per Detik | 299.792,458 km/s |
| Kaki per Detik | 983.571.056 ft/s |
| Kaki per Menit | 59.014.263.386 ft/min |
| Mil per Jam | 670.616.629 mph |
| Simpul | 582.749.918 kn |
| Mach | 874.030,49 Mach |
| Kecepatan Cahaya | 1 c |
| Milimeter per Detik | 1.000.000 mm/s |
| Sentimeter per Detik | 100.000 cm/s |
| Meter per Detik | 1.000 m/s |
| Kilometer per Jam | 3.600 km/h |
| Meter per Menit | 60.000 m/min |
| Kilometer per Detik | 1 km/s |
| Kaki per Detik | 3.280,8399 ft/s |
| Kaki per Menit | 196.850,394 ft/min |
| Mil per Jam | 2.236,93629 mph |
| Simpul | 1.943,84449 kn |
| Mach | 2,9154519 Mach |
| Kecepatan Cahaya | 0,00000333564095 c |