Convert Mach

Speedometers are used in vehicles to measure speed

Mach is a measure of speed. Mach is a metric unit of measure, and can be abbreviated as M. For example 1 mach can be written as 1 M.

Mach Conversion Calculators

Choose a unit of speed to convert to.

Convert mach to knots
1 mach is equal to 666.738661 knots
Convert mach to speed of sound
1 mach is equal to 1 speed of sound
Convert mach to speed of light
1 mach is equal to 1.1441E-6 speed of light
Convert mach to miles per hour
1 mach is equal to 767.269148 miles per hour
Convert mach to feet per second
1 mach is equal to 1,125 feet per second
Convert mach to kilometers per second
1 mach is equal to 0.343 kilometers per second
Convert mach to kilometers per hour
1 mach is equal to 1,235 kilometers per hour
Convert mach to meters per second
1 mach is equal to 343 meters per second
Convert mach to centimeters per second
1 mach is equal to 34,300 centimeters per second

We have many more speed conversion tools that you might also find useful.

Mach unit of measurement conversion

Mach Measurement Conversion Table

Common mach values and equivalent imperial and metric speed measurements
mach knots speed of sound speed of light miles per hour feet per second kilometers per second kilometers per hour meters per second centimeters per second
1 M 666.738661 kn 1 0.0000011441 767.269148 mph 1,125 ft/s 0.343 km/s 1,235 km/h 343 m/s 34,300 cm/s
2 M 1,333 kn 2 0.0000022882 1,535 mph 2,251 ft/s 0.686 km/s 2,470 km/h 686 m/s 68,600 cm/s
3 M 2,000 kn 3 0.0000034324 2,302 mph 3,376 ft/s 1.029 km/s 3,704 km/h 1,029 m/s 102,900 cm/s
4 M 2,667 kn 4 0.0000045765 3,069 mph 4,501 ft/s 1.372 km/s 4,939 km/h 1,372 m/s 137,200 cm/s
5 M 3,334 kn 5 0.0000057206 3,836 mph 5,627 ft/s 1.715 km/s 6,174 km/h 1,715 m/s 171,500 cm/s
6 M 4,000 kn 6 0.0000068647 4,604 mph 6,752 ft/s 2.058 km/s 7,409 km/h 2,058 m/s 205,800 cm/s
7 M 4,667 kn 7 0.0000080089 5,371 mph 7,877 ft/s 2.401 km/s 8,644 km/h 2,401 m/s 240,100 cm/s
8 M 5,334 kn 8 0.000009153 6,138 mph 9,003 ft/s 2.744 km/s 9,878 km/h 2,744 m/s 274,400 cm/s
9 M 6,001 kn 9 0.000010297 6,905 mph 10,128 ft/s 3.087 km/s 11,113 km/h 3,087 m/s 308,700 cm/s
10 M 6,667 kn 10 0.000011441 7,673 mph 11,253 ft/s 3.43 km/s 12,348 km/h 3,430 m/s 343,000 cm/s
11 M 7,334 kn 11 0.000012585 8,440 mph 12,379 ft/s 3.773 km/s 13,583 km/h 3,773 m/s 377,300 cm/s
12 M 8,001 kn 12 0.000013729 9,207 mph 13,504 ft/s 4.116 km/s 14,818 km/h 4,116 m/s 411,600 cm/s
13 M 8,668 kn 13 0.000014874 9,974 mph 14,629 ft/s 4.459 km/s 16,052 km/h 4,459 m/s 445,900 cm/s
14 M 9,334 kn 14 0.000016018 10,742 mph 15,755 ft/s 4.802 km/s 17,287 km/h 4,802 m/s 480,200 cm/s
15 M 10,001 kn 15 0.000017162 11,509 mph 16,880 ft/s 5.145 km/s 18,522 km/h 5,145 m/s 514,500 cm/s
16 M 10,668 kn 16 0.000018306 12,276 mph 18,005 ft/s 5.488 km/s 19,757 km/h 5,488 m/s 548,800 cm/s
17 M 11,335 kn 17 0.00001945 13,044 mph 19,131 ft/s 5.831 km/s 20,992 km/h 5,831 m/s 583,100 cm/s
18 M 12,001 kn 18 0.000020594 13,811 mph 20,256 ft/s 6.174 km/s 22,226 km/h 6,174 m/s 617,400 cm/s
19 M 12,668 kn 19 0.000021738 14,578 mph 21,381 ft/s 6.517 km/s 23,461 km/h 6,517 m/s 651,700 cm/s
20 M 13,335 kn 20 0.000022882 15,345 mph 22,507 ft/s 6.86 km/s 24,696 km/h 6,860 m/s 686,000 cm/s