Speedometers are used in vehicles to measure speed

Convert Mach to Knots

Convert from mach to knots with this simple formula:
knots = mach × 666.738661
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1 Mach = 666.738661 Knots

Learn How to Convert Mach to Knots Using our Conversion Formula

Converting a mach speed measurement to a knot measurement involves multiplying your speed by the conversion ratio to find the result. A mach is equal to 666.738661 knots, so to convert simply multiply by 666.738661.

For example, 5M = (5 × 666.738661) = 3,333.693305kn.

Mach and knots are both units used to measure speed. Learn more about speed and find more speed measurement conversion calculators. A mach is a metric measurement and can be abbreviated as M, for example 1M. A knot is an imperial measurement and can be abbreviated as kn, for example 1kn. Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

mach and knots are units used to measure speed
Convert Knots to Mach

More Speed Conversions

Convert to Speed Of Sound Speed
1M is equal to 1 speed of sound
Convert to Miles Per Hour Speed
1M is equal to 767.269148 miles per hour
Convert to Feet Per Second Speed
1M is equal to 1,125 feet per second
Convert to Kilometers Per Second Speed
1M is equal to 0.343 kilometers per second
Convert to Kilometers Per Hour Speed
1M is equal to 1,235 kilometers per hour
Convert to Meters Per Second Speed
1M is equal to 343 meters per second
Convert to Centimeters Per Second Speed
1M is equal to 34,300 centimeters per second

Mach Measurements and Equivalent Knot Conversions

Common mach values converted to the equivalent knot value
Mach Knots Mach Knots Mach Knots
1 666.74 21 14,002 41 27,336
2 1,333 22 14,668 42 28,003
3 2,000 23 15,335 43 28,670
4 2,667 24 16,002 44 29,337
5 3,334 25 16,668 45 30,003
6 4,000 26 17,335 46 30,670
7 4,667 27 18,002 47 31,337
8 5,334 28 18,669 48 32,003
9 6,001 29 19,335 49 32,670
10 6,667 30 20,002 50 33,337
11 7,334 31 20,669 51 34,004
12 8,001 32 21,336 52 34,670
13 8,668 33 22,002 53 35,337
14 9,334 34 22,669 54 36,004
15 10,001 35 23,336 55 36,671
16 10,668 36 24,003 56 37,337
17 11,335 37 24,669 57 38,004
18 12,001 38 25,336 58 38,671
19 12,668 39 26,003 59 39,338
20 13,335 40 26,670 60 40,004