Meters per Second to Knots (m/s to kn) Converter

1 meter per second equals 1.943844 knots — multiply the meters-per-second value by 1.943844 to convert. A knot is one nautical mile per hour, and one nautical mile is 1852 metres, so 1 m/s = 3600/1852 = 1.943844 kn. Knots are the standard speed unit in aviation, sailing and marine weather.

The formula

To convert meters per second to knots, multiply by 1.943844:

kn = m/s × 1.943844

For example, a wind of 10 m/s equals 10 × 1.943844 = 19.438445 kn. To reverse it, divide by 1.943844 (or multiply by 0.51444444).

Conversion table

How to convert online

1. Type the number of meters per second into the first box.
2. Read the equivalent value in knots instantly in the second box.
3. Or enter a knot value to convert back to m/s — it works both ways.

Use the Meter per Second to Knot Converter — free and instant in your browser.

Where this conversion is used

Weather services report wind and gust speeds in metres per second, but pilots, sailors and coastguards work in knots. Converting between the two is routine for flight planning, marine forecasts, sailing races and interpreting anemometer readings against aviation or nautical charts. As a feel for the scale, a gentle breeze of about 5 m/s is roughly 9.7 knots, a strong 15 m/s wind is close to 29 knots, and gale-force gusts around 20 m/s reach nearly 39 knots. Because the factor 1.943844 is almost exactly two, a quick mental estimate is to double the m/s value, then trim a few percent — but the converter below gives the precise knot figure whenever an approximation is not good enough.

FAQ

How many knots are in a meter per second?

One meter per second equals 1.943844 knots. Multiply the m/s value by 1.943844, so 10 m/s = 19.438445 kn.

What is the formula to convert m/s to knots?

kn = m/s × 1.943844. For example, 25 m/s = 48.596112 kn and 100 m/s = 194.384449 kn.

How do I convert knots back to meters per second?

Divide the knot value by 1.943844, or multiply by 0.51444444. So 19.438445 kn = 10 m/s.

Is the conversion exact?

The factor 1.943844 is a rounded form of 3600/1852; the underlying nautical-mile definition of exactly 1852 m is precise, and the tool applies full precision.

Related converters

• Knot to Meter per Second Converter
• Meter per Second to Kilometer per Hour Converter
• Meter per Second to Mile per Hour Converter
• Meter per Second to Foot per Second Converter

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