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 |
yard per second | 375.1093613 ydps | 750.2187227 ydps | 1,125.3280840 ydps | 1,500.4374453 ydps | 1,875.5468066 ydps | 2,250.6561680 ydps | 2,625.7655293 ydps | 3,000.8748906 ydps | 3,375.9842520 ydps | 3,751.0936133 ydps | 4,126.2029746 ydps | 4,501.3123360 ydps | 4,876.4216973 ydps | 5,251.5310586 ydps | 5,626.6404199 ydps | 6,001.7497813 ydps | 6,376.8591426 ydps | 6,751.9685039 ydps | 7,127.0778653 ydps | 7,502.1872266 ydps | 7,877.2965879 ydps | 8,252.4059493 ydps | 8,627.5153106 ydps | 9,002.6246719 ydps | 9,377.7340332 ydps | 9,752.8433946 ydps | 10,127.9527559 ydps | 10,503.0621172 ydps | 10,878.1714786 ydps | 11,253.2808399 ydps | 11,628.3902012 ydps | 12,003.4995626 ydps | 12,378.6089239 ydps | 12,753.7182852 ydps | 13,128.8276465 ydps | 13,503.9370079 ydps | 13,879.0463692 ydps | 14,254.1557305 ydps | 14,629.2650919 ydps | 15,004.3744532 ydps | 15,379.4838145 ydps | 15,754.5931759 ydps | 16,129.7025372 ydps | 16,504.8118985 ydps | 16,879.9212598 ydps | 17,255.0306212 ydps | 17,630.1399825 ydps | 18,005.2493438 ydps | 18,380.3587052 ydps | 18,755.4680665 ydps | 19,130.5774278 ydps | 19,505.6867892 ydps | 19,880.7961505 ydps | 20,255.9055118 ydps | 20,631.0148731 ydps | 21,006.1242345 ydps | 21,381.2335958 ydps | 21,756.3429571 ydps | 22,131.4523185 ydps | 22,506.5616798 ydps | 22,881.6710411 ydps | 23,256.7804025 ydps | 23,631.8897638 ydps | 24,006.9991251 ydps | 24,382.1084864 ydps | 24,757.2178478 ydps | 25,132.3272091 ydps | 25,507.4365704 ydps | 25,882.5459318 ydps | 26,257.6552931 ydps | 26,632.7646544 ydps | 27,007.8740157 ydps | 27,382.9833771 ydps | 27,758.0927384 ydps | 28,133.2020997 ydps | 28,508.3114611 ydps | 28,883.4208224 ydps | 29,258.5301837 ydps | 29,633.6395451 ydps | 30,008.7489064 ydps | 30,383.8582677 ydps | 30,758.9676290 ydps | 31,134.0769904 ydps | 31,509.1863517 ydps | 31,884.2957130 ydps | 32,259.4050744 ydps | 32,634.5144357 ydps | 33,009.6237970 ydps | 33,384.7331584 ydps | 33,759.8425197 ydps | 34,134.9518810 ydps | 34,510.0612423 ydps | 34,885.1706037 ydps | 35,260.2799650 ydps | 35,635.3893263 ydps | 36,010.4986877 ydps | 36,385.6080490 ydps | 36,760.7174103 ydps | 37,135.8267717 ydps | 37,510.9361330 ydps |
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) | yards per second | speed of sounds (68 °F) | yards per second |
---|---|---|---|
1 | ≈ 375.10936132983 | 6 | ≈ 2250.656167979 |
2 | ≈ 750.21872265967 | 7 | ≈ 2625.7655293088 |
3 | ≈ 1125.3280839895 | 8 | ≈ 3000.8748906387 |
4 | ≈ 1500.4374453193 | 9 | ≈ 3375.9842519685 |
5 | ≈ 1875.5468066492 | 10 | ≈ 3751.0936132983 |
Yards per second (abbreviated mph, YDPS or yard/s) is an imperial and United States customary unit of speed expressing the number of statute yard covered in one second.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
yard per second | ydps | ≡ 1 yd/s | = 0.9144 m/s | Imperial/US |
yards per second | speed of sounds (68 °F) | yards per second | speed of sounds (68 °F) |
---|---|---|---|
1 | ≈ 0.002665889212828 | 6 | ≈ 0.015995335276968 |
2 | ≈ 0.005331778425656 | 7 | ≈ 0.018661224489796 |
3 | ≈ 0.007997667638484 | 8 | ≈ 0.021327113702624 |
4 | ≈ 0.010663556851312 | 9 | ≈ 0.023993002915452 |
5 | ≈ 0.01332944606414 | 10 | ≈ 0.02665889212828 |
speed of sounds (68 °F) | yards per second |
---|---|
1 | ≈ 375.1093613 |
0.0026659 | ≈ 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 …) |