Meters per Second to Knots Converter

About the m/s to kn calculation

One meter per second is exactly 1.9438 knots, so converting between them is a single multiplication. Enter any value above and the result updates as you type. The SI unit of speed, used in physics and in wind-speed reporting. One nautical mile per hour — the standard at sea and in aviation.

Formula

kn = m/s × 1.9438

1 m/s = 1.9438 kn
1 kn = 0.514444 m/s

Worked example

To convert 10 m/s, multiply by 1.9438: 10 × 1.9438 = 19.4384 kn.

Frequently asked questions

How many knots are in a meter per second?

There are 1.9438 knots in one meter per second. To convert any amount, multiply the number of meters per second by 1.9438.

How do I convert knots back to meters per second?

Divide instead of multiplying, or equivalently multiply by 0.514444. One knot is 0.514444 meters per second.

Is this conversion exact?

Yes. Since the international agreement of 1959, the relationship between meters per second and knots is defined exactly rather than measured, so the only rounding here is in how many decimal places we show.

Where is each of these units used?

Meters per Second: the SI unit of speed, used in physics and in wind-speed reporting. Knots: one nautical mile per hour — the standard at sea and in aviation.

Sources

• NIST Special Publication 811 — Guide for the Use of the International System of Units