m/s to Knots Converter

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Convert meters per second to knots at the rate 1 m/s ≈ 1.9438 knot. Useful when SI wind-speed or marine-current data in m/s needs to be expressed in the maritime/aviation knot convention. Anchors: 5 m/s ≈ 9.72 kn, 12 m/s ≈ 23.33 kn (gale), 33 m/s ≈ 64.14 kn (hurricane). Browser-local.

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

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

Quick reference table

Meter per second (m/s)Knot (kn)
10 m/s19.4384 kn
25 m/s48.5961 kn
50 m/s97.1922 kn
60 m/s116.6307 kn
80 m/s155.5076 kn
100 m/s194.3844 kn
120 m/s233.2613 kn
150 m/s291.5767 kn
200 m/s388.7689 kn

Glossary

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.

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.

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.

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