MPH, KPH, m/s, knots.
Converts between km/h, mph, m/s, and knots. Common factors: 1 mph ≈ 1.609 km/h; 1 m/s = 3.6 km/h; 1 knot ≈ 1.852 km/h.
Knots are standard for aviation and shipping worldwide.
Even countries that use km/h for road speeds typically switch to knots for maritime and aviation contexts, since a knot is tied to the geography of the globe (one nautical mile per hour) in a way that's useful for navigation.
100 km/h ≈ 62.14 mph.
Historically tied to a nautical mile (1 minute of latitude), which is more useful than miles for navigation.
Yes — it's the SI unit for speed, used in scientific and engineering contexts.
About 62 mph — a useful benchmark since it's close to many US highway speed limits, making cross-checking speedometers between countries easier.