what is the speed of light in feet
You can view more details on each measurement unit: speed of light [vacuum] or foot/nanosecond. The SI derived unit for speed is the meter/second. 1 meter/second is equal to 3.33564095198E-9 speed of light [vacuum], or 3.28083989501E-9 foot/nanosecond. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between speed of light [vacuum] and feet/nanosecond.