| 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 hour | 48,614,173.228346 iph | 97,228,346.456693 iph | 145,842,519.68504 iph | 194,456,692.91339 iph | 243,070,866.14173 iph | 291,685,039.37008 iph | 340,299,212.59843 iph | 388,913,385.82677 iph | 437,527,559.05512 iph | 486,141,732.28346 iph | 534,755,905.51181 iph | 583,370,078.74016 iph | 631,984,251.9685 iph | 680,598,425.19685 iph | 729,212,598.4252 iph | 777,826,771.65354 iph | 826,440,944.88189 iph | 875,055,118.11024 iph | 923,669,291.33858 iph | 972,283,464.56693 iph | 1,020,897,637.7953 iph | 1,069,511,811.0236 iph | 1,118,125,984.252 iph | 1,166,740,157.4803 iph | 1,215,354,330.7087 iph | 1,263,968,503.937 iph | 1,312,582,677.1654 iph | 1,361,196,850.3937 iph | 1,409,811,023.622 iph | 1,458,425,196.8504 iph | 1,507,039,370.0787 iph | 1,555,653,543.3071 iph | 1,604,267,716.5354 iph | 1,652,881,889.7638 iph | 1,701,496,062.9921 iph | 1,750,110,236.2205 iph | 1,798,724,409.4488 iph | 1,847,338,582.6772 iph | 1,895,952,755.9055 iph | 1,944,566,929.1339 iph | 1,993,181,102.3622 iph | 2,041,795,275.5906 iph | 2,090,409,448.8189 iph | 2,139,023,622.0472 iph | 2,187,637,795.2756 iph | 2,236,251,968.5039 iph | 2,284,866,141.7323 iph | 2,333,480,314.9606 iph | 2,382,094,488.189 iph | 2,430,708,661.4173 iph | 2,479,322,834.6457 iph | 2,527,937,007.874 iph | 2,576,551,181.1024 iph | 2,625,165,354.3307 iph | 2,673,779,527.5591 iph | 2,722,393,700.7874 iph | 2,771,007,874.0157 iph | 2,819,622,047.2441 iph | 2,868,236,220.4724 iph | 2,916,850,393.7008 iph | 2,965,464,566.9291 iph | 3,014,078,740.1575 iph | 3,062,692,913.3858 iph | 3,111,307,086.6142 iph | 3,159,921,259.8425 iph | 3,208,535,433.0709 iph | 3,257,149,606.2992 iph | 3,305,763,779.5276 iph | 3,354,377,952.7559 iph | 3,402,992,125.9843 iph | 3,451,606,299.2126 iph | 3,500,220,472.4409 iph | 3,548,834,645.6693 iph | 3,597,448,818.8976 iph | 3,646,062,992.126 iph | 3,694,677,165.3543 iph | 3,743,291,338.5827 iph | 3,791,905,511.811 iph | 3,840,519,685.0394 iph | 3,889,133,858.2677 iph | 3,937,748,031.4961 iph | 3,986,362,204.7244 iph | 4,034,976,377.9528 iph | 4,083,590,551.1811 iph | 4,132,204,724.4094 iph | 4,180,818,897.6378 iph | 4,229,433,070.8661 iph | 4,278,047,244.0945 iph | 4,326,661,417.3228 iph | 4,375,275,590.5512 iph | 4,423,889,763.7795 iph | 4,472,503,937.0079 iph | 4,521,118,110.2362 iph | 4,569,732,283.4646 iph | 4,618,346,456.6929 iph | 4,666,960,629.9213 iph | 4,715,574,803.1496 iph | 4,764,188,976.378 iph | 4,812,803,149.6063 iph | 4,861,417,322.8346 iph |
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.
| 1 speed of sounds (68 °F) ≈ 48614173.228346 inches per hour | 6 speed of sounds (68 °F) ≈ 291685039.37008 inches per hour |
| 2 speed of sounds (68 °F) ≈ 97228346.456693 inches per hour | 7 speed of sounds (68 °F) ≈ 340299212.59843 inches per hour |
| 3 speed of sounds (68 °F) ≈ 145842519.68504 inches per hour | 8 speed of sounds (68 °F) ≈ 388913385.82677 inches per hour |
| 4 speed of sounds (68 °F) ≈ 194456692.91339 inches per hour | 9 speed of sounds (68 °F) ≈ 437527559.05512 inches per hour |
| 5 speed of sounds (68 °F) ≈ 243070866.14173 inches per hour | 10 speed of sounds (68 °F) ≈ 486141732.28346 inches per hour |
Inch per hour is unit of speed or velocity. It equals 0.000007055 meter per second. Plural name is inches / hour.
| 1 inches per hour ≈ 2.0570132815031E-8 speed of sounds (68 °F) | 6 inches per hour ≈ 1.2342079689018E-7 speed of sounds (68 °F) |
| 2 inches per hour ≈ 4.1140265630062E-8 speed of sounds (68 °F) | 7 inches per hour ≈ 1.4399092970522E-7 speed of sounds (68 °F) |
| 3 inches per hour ≈ 6.1710398445092E-8 speed of sounds (68 °F) | 8 inches per hour ≈ 1.6456106252025E-7 speed of sounds (68 °F) |
| 4 inches per hour ≈ 8.2280531260123E-8 speed of sounds (68 °F) | 9 inches per hour ≈ 1.8513119533528E-7 speed of sounds (68 °F) |
| 5 inches per hour ≈ 1.0285066407515E-7 speed of sounds (68 °F) | 10 inches per hour ≈ 2.0570132815031E-7 speed of sounds (68 °F) |
| 1 speed of sounds (68 °F) ≈ 48,614,173.228346 inches per hour |
| 1 inches per hour ≈ 2.0570132815031 × 10-8 speed of sounds (68 °F) |