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Mach to Knots

Convert Mach (Mach) to knots (kn). Type in either box; the other updates as you go.

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1 Mach = 661.47084 kn

1 Mach equals661.4708423 kn
1 knot equals0.001511782434 Mach
Formulakn = Mach × 661.4708423

How to convert Mach to knots

To convert Mach to knots, multiply the number of Mach by 661.4708423.

kn = Mach × 661.4708423

Example

Convert 5 Mach to knots:

5 Mach × 661.4708423 = 3,307.35 kn

Mach to knot conversion chart

Mach (Mach)Knots (kn)
1 Mach661.4708 kn
2 Mach1,322.942 kn
3 Mach1,984.413 kn
4 Mach2,645.883 kn
5 Mach3,307.354 kn
6 Mach3,968.825 kn
7 Mach4,630.296 kn
8 Mach5,291.767 kn
9 Mach5,953.238 kn
10 Mach6,614.708 kn
12 Mach7,937.65 kn
15 Mach9,922.063 kn
20 Mach13,229.42 kn
25 Mach16,536.77 kn
30 Mach19,844.13 kn
40 Mach26,458.83 kn
50 Mach33,073.54 kn
60 Mach39,688.25 kn
70 Mach46,302.96 kn
75 Mach49,610.31 kn
80 Mach52,917.67 kn
90 Mach59,532.38 kn
100 Mach66,147.08 kn
150 Mach99,220.63 kn
200 Mach132,294.2 kn
250 Mach165,367.7 kn
500 Mach330,735.4 kn
1,000 Mach661,470.8 kn

Going the other way? See the knots to Mach chart.

About the units

Mach (Mach)

Mach 1 is the speed of sound. This converter uses 340.29 m/s, the speed of sound in air at sea level and 15 °C; the real value falls with altitude.

Knot (kn)

A knot is one nautical mile per hour, about 1.852 km/h. Ships, aircraft and wind forecasts for sailors use knots.

Frequently asked questions

How many knots are in a Mach?

There are 661.4708423 knots in a Mach.

How many Mach are in a knot?

There are 0.001511782434 Mach in a knot.

How do you convert Mach to knots?

To convert Mach to knots, multiply the number of Mach by 661.4708423.

What is 5 Mach in knots?

5 Mach equals 3,307.35 knots.

Convert between miles per hour, kilometers per hour, meters per second and knots. Open the speed converter to see a value in every unit at once.