At One Place

Knots to mach

1 knot in mach
1 kn = 0.0015118 Mach
Mach = kn × 0.001511782434

To convert knots to mach, multiply by 0.001511782434. The table below gives the values people look up most often, and the converter works for any number.

Knots to mach table

Common knot values converted to mach.
Knots Mach
1 kn 0.0015118
2 kn 0.0030236
3 kn 0.0045353
4 kn 0.0060471
5 kn 0.0075589
10 kn 0.015118
15 kn 0.022677
20 kn 0.030236
25 kn 0.037795
30 kn 0.045353
40 kn 0.060471
50 kn 0.075589
75 kn 0.11338
100 kn 0.15118
250 kn 0.37795
500 kn 0.75589
1,000 kn 1.511782

How the conversion works

The relationship is Mach = kn × 0.001511782434. Both units measure speed, so the conversion is a fixed factor that never changes.

Mach: Speed of sound at sea level, 15 °C.

Common questions

How many mach are in one knot?
One knot equals 0.0015118 mach. Mach = kn × 0.001511782434.
How do you convert knots to mach?
Use Mach = kn × 0.001511782434. So 10 kn is 0.015118 Mach.
How many knots are in one mach?
One mach equals 661.4708 knots, which is the reverse of the conversion above.
Is there more than one kind of mach?
Speed of sound at sea level, 15 °C.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked