Speed
Linear speed for travel, wind and physics.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert foot per second (ft/s) to speed of light in vacuum (c). 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 foot per second value to calculate speed of light in vacuum 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 ft/s | m/s | 0.3048 |
| centimetre per secondfrom ft/s | cm/s | 30.48 |
| foot per secondfrom ft/s | ft/s | 1 |
| kilometre per hourfrom ft/s | km/h | 1.09728 |
| mile per hourfrom ft/s | mph | 0.681818 |
| knotfrom ft/s | kn | 0.592484 |
| kilometre per secondfrom ft/s | km/s | 0.0003048 |
| speed of light in vacuumfrom ft/s | c | 0.0000000010167 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Foot Per Second (ft/s) and speed of light in vacuum (c) are units of speed. Use this page to convert in either direction.
| Foot Per Second (ft/s) | Speed Of Light In Vacuum (c) |
|---|---|
| 1 ft/s | 0.0000000010167 c |
| 5 ft/s | 0.00000000508352 c |
| 10 ft/s | 0.000000010167 c |
| 100 ft/s | 0.00000010167 c |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
c to ft/s (speed of light in vacuum to foot per second)