Knots to m/s Converter

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Convert knots to meters per second at the exact rate 1 knot = 1852/3600 m/s ≈ 0.5144 m/s. Useful for translating maritime or aviation speed data into the SI unit needed for physics computations like kinetic energy or aerodynamic drag. Anchors: 30 kn ≈ 15.43 m/s, 60 kn ≈ 30.87 m/s, 480 kn ≈ 246.93 m/s. Browser-local.

Knot (kn)
Meter per second (m/s)

Knot (kn) → Meter per second (m/s)

Quick reference table

Knot (kn)Meter per second (m/s)
10 kn5.1444 m/s
25 kn12.8611 m/s
50 kn25.7222 m/s
60 kn30.8667 m/s
80 kn41.1556 m/s
100 kn51.4444 m/s
120 kn61.7333 m/s
150 kn77.1667 m/s
200 kn102.8889 m/s

Glossary

Knot (kn)

A knot is one nautical mile per hour, used in maritime navigation, aviation and meteorology. 1 knot = 1.852 km/h = 1.1508 mph = 0.5144 m/s. The unit comes from the practice of measuring ship speed by counting knots on a rope let out behind the vessel. Modern airliners cruise at about 470–510 knots; ocean currents at 1–4 knots.

Meter per second (m/s)

The meter per second is the SI derived unit of speed, defined as the distance of one meter travelled in one second. It is the standard unit in physics and engineering. Useful conversions: 1 m/s = 3.6 km/h = 2.2369 mph = 1.9438 knots. Wind speeds, projectile velocities and free-fall figures are typically reported in m/s in scientific contexts.

Metric / SI speed

In the metric system, speed is reported in meters per second (scientific) or kilometers per hour (everyday). The relation is exact: 1 m/s = 3.6 km/h. Most countries use km/h on road signs and speedometers; m/s appears in physics, engineering, weather data and athletics where fine-resolution timing matters.

Imperial / US Customary speed

In the United States, the United Kingdom and a few other countries, road speeds are reported in miles per hour (mph). US engineering also uses feet per second (ft/s). 1 mph = 1.6093 km/h = 0.4470 m/s. Maritime and aviation worldwide use knots (1 knot = 1.852 km/h), independent of the metric/imperial divide.

Related tools

m/s to Knots
Convert m/s to knots — 1 m/s ≈ 1.9438 kn
Knots to km/h
Convert knots to km/h — 1 knot = 1.852 km/h exactly
Knots to mph
Convert knots to mph — 1 knot ≈ 1.1508 mph
Speed Converter
Convert speed — m/s, km/h, mph, knots, ft/s, mach