Convert Speed of Light (c) to Foot/Minute (ft/min) instantly.
About these units
Speed of Light (c)
The speed of light in a vacuum, denoted c, is exactly 299,792,458 m/s, one of the most fundamental constants of physics. Light speed defines the structure of spacetime, the upper limit for classical information transfer, and the basis for relativity. Time dilation, length contraction, and mass-energy equivalence (E = mc²) all arise from the invariance of c. In astronomy, the speed of light is used to define light-years, measure cosmic distances, and synchronize observations across telescopes. In communication technology, optical networks rely on light-speed propagation through fiber, albeit slightly slower than in vacuum. c is not just a speed—it is a cornerstone of the physical universe.
Foot/Minute (ft/min)
A foot per minute is common in industrial engineering, HVAC air flow analysis, elevator design, and manufacturing processes. Ventilation rates in ducts are often reported in ft/min, making the unit crucial for designing safe and comfortable living spaces. In machining, ft/min corresponds to cutting speed along a tool edge, helping determine tool wear and material removal rates. Despite being less familiar in daily life, ft/min is a key engineering unit.