Speed Converter
Convert between 50+ speed units instantly - from geological movements to light speed. Features popular conversions like mph to km/h, m/s to fps, knots conversions, and comprehensive visual feedback.
Speed Conversion Guide
Transportation & Natural
Commercial airliners cruise at about 250 m/s (900 km/h or 560 mph)
High-speed trains can reach 100+ m/s (360+ km/h or 224+ mph)
Formula 1 cars reach top speeds of 100 m/s (360 km/h or 224 mph)
Sound travels at 343 m/s in air at 20°C, but 1500 m/s in water
Hurricane winds start at 33 m/s (74 mph or 119 km/h)
Space & Physics
Earth orbits the Sun at 29.78 km/s (67,000 mph)
Escape velocity from Earth is 11.2 km/s (40,320 km/h)
Nothing can travel faster than light: 299,792,458 m/s in vacuum
The speed of light is the same for all observers (Einstein's relativity)
Quick Conversion Tips
Speed Records
Fastest land animal: Cheetah at 31 m/s (70 mph or 112 km/h)
Fastest bird: Peregrine falcon diving at 90 m/s (200 mph)
Fastest car: Thrust SSC at 341 m/s (763 mph, breaking sound barrier)
Fastest spacecraft: Parker Solar Probe will reach 200 km/s
Maritime Navigation
1 knot = 1 nautical mile per hour = 0.514 m/s
Ship speeds are measured in knots worldwide
Fastest ships can reach 30+ knots (15+ m/s or 56+ km/h)
Average walking speed is 1.4 m/s (5 km/h or 3.1 mph)
Professional speed converter supporting 50+ units from geological movements to light speed. Accurate conversions for transportation, aviation, maritime, and scientific applications.