Speed Converter

Convert between km/h, mph, m/s and knots.

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The short answer

100 km/h is 62.1 mph — essential for driving abroad. A 5:00/km running pace is 12 km/h. One knot (nautical mile per hour) is 1.852 km/h, the standard at sea and in aviation.

How to use the speed converter

  1. Enter a value.
  2. Pick the from-unit.
  3. See all units converted instantly.

Speed Converter — FAQs

How fast is 100 km/h in mph?

62.14 mph. Multiply km/h by 0.6214.

What is a knot in km/h?

1.852 km/h. Ships and planes use knots because a nautical mile equals one minute of latitude.

How do I convert pace to speed?

Speed (km/h) = 60 ÷ pace (min/km). A 5:00/km pace = 12 km/h.

mph to km/h quick math?

Multiply mph by 1.6: 60 mph ≈ 96 km/h (actual 96.56). Close enough for speed limits.

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