Speed Converter: MPH to KPH and More

Convert Speed Units
Convert between mph, km/h, m/s, knots, and more instantly
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Understanding Speed Units & Conversions
  • Metric System (SI):
    • Kilometers per hour (km/h or kph): Standard unit for vehicle speeds in most countries. Learn more
    • Meters per second (m/s): The SI unit of speed, commonly used in physics and science. Learn more
    • Centimeters per second (cm/s): Used for slower movements and in specific scientific contexts.
  • Imperial/US System:
    • Miles per hour (mph): Standard in the US, UK, and some other countries for road speeds. Learn more
    • Feet per second (ft/s or fps): Used in engineering, ballistics, and sports.
  • Nautical/Aviation:
    • Knots (kn): One nautical mile per hour, used in marine navigation and aviation. Learn more
    • Mach: Ratio of an object's speed to the speed of sound, used in aviation and physics.
Common Speed Conversion Formulas
  • MPH to KPH: Multiply by 1.60934 (1 mph = 1.60934 km/h)
  • KPH to MPH: Multiply by 0.62137 (1 km/h = 0.62137 mph)
  • MPH to Knots: Multiply by 0.86898 (1 mph = 0.86898 knots)
  • M/S to MPH: Multiply by 2.23694 (1 m/s = 2.23694 mph)
  • KPH to M/S: Divide by 3.6 (1 km/h = 0.27778 m/s)
Practical Applications & Uses
  • International Travel: Convert speed limits and vehicle speedometer readings between countries
  • Sports & Fitness: Compare running speeds, cycling pace, swimming velocity across different units
  • Aviation & Marine: Convert between knots, mph, and km/h for navigation and weather reports
  • Education: Solve physics problems, understand wind speeds, complete science assignments
  • Professional Use: Engineering calculations, automotive design, meteorology, and transportation planning
Why Choose Our Speed Converter
  • ✓ Instant conversions with no page reload
  • ✓ Support for all major speed units including MPH, KPH, knots, and M/S
  • ✓ Mobile-friendly design for on-the-go conversions
  • ✓ Accurate to multiple decimal places for scientific and technical use

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