MPH to Knot Converter 2026 - Speed Conversion Calculator

MPH to Knot Converter

Convert miles per hour to knots for aviation and maritime navigation

Formula: knots = mph × 0.868976

Note: 1 mph = 0.868976 knots

About Miles per Hour

Miles per hour is a unit of speed commonly used in the United States.

  • Standard for road speeds in US
  • Used for vehicle speedometers
  • 1 mph = 1.609344 km/h
  • Symbol: mph or mi/h

About Knots

The knot is a unit of speed used in aviation and maritime navigation.

  • Standard for ships and aircraft
  • 1 knot = 1 nautical mile per hour
  • 1 knot = 1.852 km/h
  • Symbol: kn or kt

Speed Conversion Examples

MPH Knots Context
10 mph 8.69 kn Light breeze
30 mph 26.07 kn City driving
60 mph 52.14 kn Highway speed
500 mph 434.49 kn Aircraft cruise

Conversion Formula & Navigation Notes

Formula

Knots = MPH × 0.868976

MPH = Knots ÷ 0.868976

Applications

  • • Aviation flight planning
  • • Maritime navigation
  • • Weather reporting
  • • Military operations