Instant Unit Convert
Instant Unit Convert

Speed Converter: MPH to KM/H, Knots, M/S & More

Instantly convert between mph, km/h, m/s, knots and more speed units. Essential for drivers, pilots, runners, cyclists, and weather analysis with precise calculations.

Speed Converter

Convert between different units of speed and velocity.

Common Conversions:

  • 1 m/s = 3.6 km/h
  • 1 km/h = 0.621371 mph
  • 1 mph = 1.60934 km/h
  • 1 knot = 1.852 km/h
  • 1 mach = 1,225 km/h (at sea level)

Speed Facts:

  • Sound travels at approximately 343 m/s (1,235 km/h) in air at sea level.
  • Light travels at approximately 299,792,458 m/s in a vacuum.
  • The average walking speed is about 5 km/h (3.1 mph).
  • The fastest recorded human running speed is 44.72 km/h (27.8 mph).

Popular Speed Converter: MPH to KM/H, Knots, M/S & More Conversions

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mph to km/h
m/s to km/h
Knots to mph
km/h to m/s
mph to Knots

About Speed Converter: MPH to KM/H, Knots, M/S & More

Our speed converter allows you to convert between different units of speed and velocity. Whether you're analyzing vehicle performance, studying physics, or checking weather reports, our tool provides accurate speed conversions.

We support a wide range of speed units including meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), feet per second (ft/s), knots, and Mach.

Common speed conversions:

  • 1 m/s = 3.6 km/h = 2.23694 mph
  • 1 km/h = 0.277778 m/s = 0.621371 mph
  • 1 mph = 0.44704 m/s = 1.60934 km/h
  • 1 knot = 0.514444 m/s = 1.852 km/h = 1.15078 mph

Our converter handles all these calculations automatically, giving you instant and accurate results for any speed conversion you need.