Convert knots to Mach
Knots to mach. Enter a value to convert, or use the knots to Mach chart further down the page.
1 knot equals 0.001511782434 mach. Going the other way, 1 mach = 661.4708423 knots.
How to convert knots to Mach
To convert knots to mach, multiply the knot value by 0.001511782434. You can also divide by 661.4708423 to get the same answer.
M = kn × 0.001511782434
Worked example
Convert 60 kn to mach:
60 kn = 0.09070694604 M
knots to Mach conversion chart
Use this knots to Mach table for quick reference without typing anything.
| knots (kn) | mach (M) |
|---|---|
| 1 kn | 0.001511782434 M |
| 5 kn | 0.00755891217 M |
| 10 kn | 0.01511782434 M |
| 20 kn | 0.03023564868 M |
| 30 kn | 0.04535347302 M |
| 40 kn | 0.06047129736 M |
| 50 kn | 0.0755891217 M |
| 60 kn | 0.09070694604 M |
| 70 kn | 0.1058247704 M |
| 80 kn | 0.1209425947 M |
| 100 kn | 0.1511782434 M |
| 120 kn | 0.1814138921 M |
What is a knot?
A knot is one nautical mile per hour, or exactly 1.852 km/h. It is the standard speed unit in marine and air navigation.
What is a mach?
Mach 1 is the speed of sound. This converter uses 340.29 m/s, the value at sea level in the International Standard Atmosphere.
Frequently asked questions
How many Mach are in a knot?
1 knots equals 0.001511782434 Mach. Going the other way, 1 Mach is 661.4708423 knots.
How do you convert knots to Mach?
To convert knots to mach, multiply the knot value by 0.001511782434. You can also divide by 661.4708423 to get the same answer.
What is 10 knots in Mach?
10 knots equals 0.01511782434 Mach. The conversion chart on this page lists the other values people look up most often.
Related speed conversions
Convert knots to other units
Convert other units to Mach
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