speed of sound (68 °F) | 1 s | 2 s | 3 s | 4 s | 5 s | 6 s | 7 s | 8 s | 9 s | 10 s | 11 s | 12 s | 13 s | 14 s | 15 s | 16 s | 17 s | 18 s | 19 s | 20 s | 21 s | 22 s | 23 s | 24 s | 25 s | 26 s | 27 s | 28 s | 29 s | 30 s | 31 s | 32 s | 33 s | 34 s | 35 s | 36 s | 37 s | 38 s | 39 s | 40 s | 41 s | 42 s | 43 s | 44 s | 45 s | 46 s | 47 s | 48 s | 49 s | 50 s | 51 s | 52 s | 53 s | 54 s | 55 s | 56 s | 57 s | 58 s | 59 s | 60 s | 61 s | 62 s | 63 s | 64 s | 65 s | 66 s | 67 s | 68 s | 69 s | 70 s | 71 s | 72 s | 73 s | 74 s | 75 s | 76 s | 77 s | 78 s | 79 s | 80 s | 81 s | 82 s | 83 s | 84 s | 85 s | 86 s | 87 s | 88 s | 89 s | 90 s | 91 s | 92 s | 93 s | 94 s | 95 s | 96 s | 97 s | 98 s | 99 s | 100 s |
inch per minute | 810,236.2204724 ipm | 1,620,472.4409449 ipm | 2,430,708.6614173 ipm | 3,240,944.8818898 ipm | 4,051,181.1023622 ipm | 4,861,417.3228346 ipm | 5,671,653.5433071 ipm | 6,481,889.7637795 ipm | 7,292,125.984252 ipm | 8,102,362.2047244 ipm | 8,912,598.4251969 ipm | 9,722,834.6456693 ipm | 10,533,070.866142 ipm | 11,343,307.086614 ipm | 12,153,543.307087 ipm | 12,963,779.527559 ipm | 13,774,015.748031 ipm | 14,584,251.968504 ipm | 15,394,488.188976 ipm | 16,204,724.409449 ipm | 17,014,960.629921 ipm | 17,825,196.850394 ipm | 18,635,433.070866 ipm | 19,445,669.291339 ipm | 20,255,905.511811 ipm | 21,066,141.732283 ipm | 21,876,377.952756 ipm | 22,686,614.173228 ipm | 23,496,850.393701 ipm | 24,307,086.614173 ipm | 25,117,322.834646 ipm | 25,927,559.055118 ipm | 26,737,795.275591 ipm | 27,548,031.496063 ipm | 28,358,267.716535 ipm | 29,168,503.937008 ipm | 29,978,740.15748 ipm | 30,788,976.377953 ipm | 31,599,212.598425 ipm | 32,409,448.818898 ipm | 33,219,685.03937 ipm | 34,029,921.259843 ipm | 34,840,157.480315 ipm | 35,650,393.700787 ipm | 36,460,629.92126 ipm | 37,270,866.141732 ipm | 38,081,102.362205 ipm | 38,891,338.582677 ipm | 39,701,574.80315 ipm | 40,511,811.023622 ipm | 41,322,047.244094 ipm | 42,132,283.464567 ipm | 42,942,519.685039 ipm | 43,752,755.905512 ipm | 44,562,992.125984 ipm | 45,373,228.346457 ipm | 46,183,464.566929 ipm | 46,993,700.787402 ipm | 47,803,937.007874 ipm | 48,614,173.228346 ipm | 49,424,409.448819 ipm | 50,234,645.669291 ipm | 51,044,881.889764 ipm | 51,855,118.110236 ipm | 52,665,354.330709 ipm | 53,475,590.551181 ipm | 54,285,826.771654 ipm | 55,096,062.992126 ipm | 55,906,299.212598 ipm | 56,716,535.433071 ipm | 57,526,771.653543 ipm | 58,337,007.874016 ipm | 59,147,244.094488 ipm | 59,957,480.314961 ipm | 60,767,716.535433 ipm | 61,577,952.755906 ipm | 62,388,188.976378 ipm | 63,198,425.19685 ipm | 64,008,661.417323 ipm | 64,818,897.637795 ipm | 65,629,133.858268 ipm | 66,439,370.07874 ipm | 67,249,606.299213 ipm | 68,059,842.519685 ipm | 68,870,078.740157 ipm | 69,680,314.96063 ipm | 70,490,551.181102 ipm | 71,300,787.401575 ipm | 72,111,023.622047 ipm | 72,921,259.84252 ipm | 73,731,496.062992 ipm | 74,541,732.283465 ipm | 75,351,968.503937 ipm | 76,162,204.724409 ipm | 76,972,440.944882 ipm | 77,782,677.165354 ipm | 78,592,913.385827 ipm | 79,403,149.606299 ipm | 80,213,385.826772 ipm | 81,023,622.047244 ipm |
The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium. In dry air at 0 °C (32 °F), the speed of sound is 331.2 metres per second (1,087 ft/s; 1,192 km/h; 741 mph; 644 kn). At 20 °C (68 °F), the speed of sound is 343 metres per second (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or a kilometre in 2.91 s or a mile in 4.69 s.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
speed of sound (68 °F) | s | 225 to 1062 km/h (761–660 mph or 661–574 kn) | ≈ 343 m/s | Other Speed |
speed of sounds (68 °F) | inches per minute | speed of sounds (68 °F) | inches per minute |
---|---|---|---|
1 | ≈ 810236.22047244 | 6 | ≈ 4861417.3228346 |
2 | ≈ 1620472.4409449 | 7 | ≈ 5671653.5433071 |
3 | ≈ 2430708.6614173 | 8 | ≈ 6481889.7637795 |
4 | ≈ 3240944.8818898 | 9 | ≈ 7292125.984252 |
5 | ≈ 4051181.1023622 | 10 | ≈ 8102362.2047244 |
Inch per minute is unit of speed. It equals 0.0004233 meter per second or 60 inches per hour. Plural name is inches / minute.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
inch per minute | ipm | ≡ 1 in/min | = 4.23×10−4 m/s | Imperial/US |
inches per minute | speed of sounds (68 °F) | inches per minute | speed of sounds (68 °F) |
---|---|---|---|
1 | ≈ 1.2342079689018E-6 | 6 | ≈ 7.4052478134111E-6 |
2 | ≈ 2.4684159378037E-6 | 7 | ≈ 8.6394557823129E-6 |
3 | ≈ 3.7026239067055E-6 | 8 | ≈ 9.8736637512148E-6 |
4 | ≈ 4.9368318756074E-6 | 9 | ≈ 1.1107871720117E-5 |
5 | ≈ 6.1710398445092E-6 | 10 | ≈ 1.2342079689018E-5 |
speed of sounds (68 °F) | inches per minute |
---|---|
1 | ≈ 810,236.2204724 |
1.2342079689018 × 10-6 | ≈ 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |