Speed
Linear speed for travel, wind and physics.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert speed of light in vacuum (c) to knot (kn). Enter a value for an instant result, or use the examples and reverse conversion below.
Linear speed for travel, wind and physics.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a speed of light in vacuum value to calculate knot with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| metre per secondfrom c | m/s | 299792000 |
| centimetre per secondfrom c | cm/s | 29979200000 |
| foot per secondfrom c | ft/s | 983571000 |
| kilometre per hourfrom c | km/h | 1079250000 |
| mile per hourfrom c | mph | 670617000 |
| knotfrom c | kn | 582750000 |
| kilometre per secondfrom c | km/s | 299792 |
| speed of light in vacuumfrom c | c | 1 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Speed Of Light In Vacuum (c) and knot (kn) are units of speed. Use this page to convert in either direction.
| Speed Of Light In Vacuum (c) | Knot (kn) |
|---|---|
| 1 c | 582750000 kn |
| 5 c | 2913750000 kn |
| 10 c | 5827500000 kn |
| 100 c | 58275000000 kn |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
kn to c (knot to speed of light in vacuum)