Convert mach (sea level)s to knots
1 Ma = 661.470842333 kn — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
How to convert mach (sea level)s to knots
Multiply the number of mach (sea level)s by 661.470842333 to get knots.
Mach (sea level): Speed of sound in the ISA standard atmosphere at sea level, 15 °C. Falls with altitude, so Mach is not a fixed speed.
Knot: One nautical mile per hour — the standard at sea and in aviation.
Mach (sea level) to Knot conversion table
| Mach (sea level)s (Ma) | Knots (kn) |
|---|---|
| 1 Ma | 661.470 84 |
| 2 Ma | 1322.9417 |
| 3 Ma | 1984.4125 |
| 5 Ma | 3307.3542 |
| 10 Ma | 6614.7084 |
| 20 Ma | 13 229.417 |
| 25 Ma | 16 536.771 |
| 50 Ma | 33 073.542 |
| 100 Ma | 66 147.084 |
| 250 Ma | 165 367.71 |
| 500 Ma | 330 735.42 |
| 1000 Ma | 661 470.84 |
Knot to Mach (sea level) conversion table
| Knots (kn) | Mach (sea level)s (Ma) |
|---|---|
| 1 kn | 0.001 511 782 4 |
| 2 kn | 0.003 023 564 9 |
| 3 kn | 0.004 535 347 3 |
| 5 kn | 0.007 558 912 2 |
| 10 kn | 0.015 117 824 |
| 20 kn | 0.030 235 649 |
| 25 kn | 0.037 794 561 |
| 50 kn | 0.075 589 122 |
| 100 kn | 0.151 178 24 |
| 250 kn | 0.377 945 61 |
| 500 kn | 0.755 891 22 |
| 1000 kn | 1.511 782 4 |
Frequently asked
How many knots are in a mach (sea level)?
One mach (sea level) equals 661.4708423 knots (Ma → kn). That figure is exact, not rounded.
How do you convert mach (sea level)s to knots?
Multiply the number of mach (sea level)s by 661.470842333 to get knots.
What is 1 kn in mach (sea level)s?
One knot is 0.001511782434 mach (sea level)s.
What is 10 Ma in kn?
10 Ma = 6614.7084 kn.
What exactly is a mach (sea level)?
Speed of sound in the ISA standard atmosphere at sea level, 15 °C. Falls with altitude, so Mach is not a fixed speed.
What exactly is a knot?
One nautical mile per hour — the standard at sea and in aviation.