| inch per hour | 1 iph | 2 iph | 3 iph | 4 iph | 5 iph | 6 iph | 7 iph | 8 iph | 9 iph | 10 iph | 11 iph | 12 iph | 13 iph | 14 iph | 15 iph | 16 iph | 17 iph | 18 iph | 19 iph | 20 iph | 21 iph | 22 iph | 23 iph | 24 iph | 25 iph | 26 iph | 27 iph | 28 iph | 29 iph | 30 iph | 31 iph | 32 iph | 33 iph | 34 iph | 35 iph | 36 iph | 37 iph | 38 iph | 39 iph | 40 iph | 41 iph | 42 iph | 43 iph | 44 iph | 45 iph | 46 iph | 47 iph | 48 iph | 49 iph | 50 iph | 51 iph | 52 iph | 53 iph | 54 iph | 55 iph | 56 iph | 57 iph | 58 iph | 59 iph | 60 iph | 61 iph | 62 iph | 63 iph | 64 iph | 65 iph | 66 iph | 67 iph | 68 iph | 69 iph | 70 iph | 71 iph | 72 iph | 73 iph | 74 iph | 75 iph | 76 iph | 77 iph | 78 iph | 79 iph | 80 iph | 81 iph | 82 iph | 83 iph | 84 iph | 85 iph | 86 iph | 87 iph | 88 iph | 89 iph | 90 iph | 91 iph | 92 iph | 93 iph | 94 iph | 95 iph | 96 iph | 97 iph | 98 iph | 99 iph | 100 iph |
| speed of sound (68 °F) | 2.0570132815031 × 10-8 s | 4.1140265630062 × 10-8 s | 6.1710398445092 × 10-8 s | 8.2280531260123 × 10-8 s | 1.0285066407515 × 10-7 s | 1.2342079689018 × 10-7 s | 1.4399092970522 × 10-7 s | 1.6456106252025 × 10-7 s | 1.8513119533528 × 10-7 s | 2.0570132815031 × 10-7 s | 2.2627146096534 × 10-7 s | 2.4684159378037 × 10-7 s | 2.674117265954 × 10-7 s | 2.8798185941043 × 10-7 s | 3.0855199222546 × 10-7 s | 3.2912212504049 × 10-7 s | 3.4969225785552 × 10-7 s | 3.7026239067055 × 10-7 s | 3.9083252348558 × 10-7 s | 4.1140265630062 × 10-7 s | 4.3197278911565 × 10-7 s | 4.5254292193068 × 10-7 s | 4.7311305474571 × 10-7 s | 4.9368318756074 × 10-7 s | 5.1425332037577 × 10-7 s | 5.348234531908 × 10-7 s | 5.5539358600583 × 10-7 s | 5.7596371882086 × 10-7 s | 5.9653385163589 × 10-7 s | 6.1710398445092 × 10-7 s | 6.3767411726595 × 10-7 s | 6.5824425008098 × 10-7 s | 6.7881438289602 × 10-7 s | 6.9938451571105 × 10-7 s | 7.1995464852608 × 10-7 s | 7.4052478134111 × 10-7 s | 7.6109491415614 × 10-7 s | 7.8166504697117 × 10-7 s | 8.022351797862 × 10-7 s | 8.2280531260123 × 10-7 s | 8.4337544541626 × 10-7 s | 8.6394557823129 × 10-7 s | 8.8451571104632 × 10-7 s | 9.0508584386135 × 10-7 s | 9.2565597667638 × 10-7 s | 9.4622610949142 × 10-7 s | 9.6679624230645 × 10-7 s | 9.8736637512148 × 10-7 s | 1.0079365079365 × 10-6 s | 1.0285066407515 × 10-6 s | 1.0490767735666 × 10-6 s | 1.0696469063816 × 10-6 s | 1.0902170391966 × 10-6 s | 1.1107871720117 × 10-6 s | 1.1313573048267 × 10-6 s | 1.1519274376417 × 10-6 s | 1.1724975704568 × 10-6 s | 1.1930677032718 × 10-6 s | 1.2136378360868 × 10-6 s | 1.2342079689018 × 10-6 s | 1.2547781017169 × 10-6 s | 1.2753482345319 × 10-6 s | 1.2959183673469 × 10-6 s | 1.316488500162 × 10-6 s | 1.337058632977 × 10-6 s | 1.357628765792 × 10-6 s | 1.3781988986071 × 10-6 s | 1.3987690314221 × 10-6 s | 1.4193391642371 × 10-6 s | 1.4399092970522 × 10-6 s | 1.4604794298672 × 10-6 s | 1.4810495626822 × 10-6 s | 1.5016196954972 × 10-6 s | 1.5221898283123 × 10-6 s | 1.5427599611273 × 10-6 s | 1.5633300939423 × 10-6 s | 1.5839002267574 × 10-6 s | 1.6044703595724 × 10-6 s | 1.6250404923874 × 10-6 s | 1.6456106252025 × 10-6 s | 1.6661807580175 × 10-6 s | 1.6867508908325 × 10-6 s | 1.7073210236476 × 10-6 s | 1.7278911564626 × 10-6 s | 1.7484612892776 × 10-6 s | 1.7690314220926 × 10-6 s | 1.7896015549077 × 10-6 s | 1.8101716877227 × 10-6 s | 1.8307418205377 × 10-6 s | 1.8513119533528 × 10-6 s | 1.8718820861678 × 10-6 s | 1.8924522189828 × 10-6 s | 1.9130223517979 × 10-6 s | 1.9335924846129 × 10-6 s | 1.9541626174279 × 10-6 s | 1.974732750243 × 10-6 s | 1.995302883058 × 10-6 s | 2.015873015873 × 10-6 s | 2.036443148688 × 10-6 s | 2.0570132815031 × 10-6 s |
Inch per hour is unit of speed or velocity. It equals 0.000007055 meter per second. Plural name is inches / hour.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| inch per hour | iph | ≡ 1 in/h ≡ 0.0254m/3600s | = 7.05×10−6 m/s | Imperial/US |
| inches per hour | speed of sounds (68 °F) | inches per hour | speed of sounds (68 °F) |
|---|---|---|---|
| 1 | ≈ 2.0570132815031E-8 | 6 | ≈ 1.2342079689018E-7 |
| 2 | ≈ 4.1140265630062E-8 | 7 | ≈ 1.4399092970522E-7 |
| 3 | ≈ 6.1710398445092E-8 | 8 | ≈ 1.6456106252025E-7 |
| 4 | ≈ 8.2280531260123E-8 | 9 | ≈ 1.8513119533528E-7 |
| 5 | ≈ 1.0285066407515E-7 | 10 | ≈ 2.0570132815031E-7 |
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 hour | speed of sounds (68 °F) | inches per hour |
|---|---|---|---|
| 1 | ≈ 48614173.228346 | 6 | ≈ 291685039.37008 |
| 2 | ≈ 97228346.456693 | 7 | ≈ 340299212.59843 |
| 3 | ≈ 145842519.68504 | 8 | ≈ 388913385.82677 |
| 4 | ≈ 194456692.91339 | 9 | ≈ 437527559.05512 |
| 5 | ≈ 243070866.14173 | 10 | ≈ 486141732.28346 |
| inches per hour | speed of sounds (68 °F) |
|---|---|
| 1 | ≈ 2.0570132815031 × 10-8 |
| 48,614,173.228346 | ≈ 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 …) |