Convert Mach to Knots

How many knots are in a Mach? Easy mach to knots conversion.
Amount
From
To
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Mach 1 ≈
643.99568 Knots
result rounded
Decimal places
Mach
Mach is the ratio of an object's speed to the speed of sound. For example, something traveling at Mach 5 is traveling at 5 times the speed of sound. The speed of sound varies depending on many factors. In dry air, at 0 degrees Celsius, the speed of sound is about 331.3 meters per second.
Knots
A knot is a unit of speed, equal to one nautical mile per hour. Something traveling at one knot is going about 1.151 land miles per hour.
Common abbreviations: kn, kt
Mach to Knots Conversion Table
results may be rounded
mach knots
1 644.00
1.5 965.99
2 1,288.0
2.5 1,610.0
3 1,932.0
3.5 2,254.0
4 2,576.0
4.5 2,898.0
5 3,220.0
6 3,864.0
7 4,508.0
8 5,152.0
9 5,796.0
10 6,440.0