foot per hour | 1 fph | 2 fph | 3 fph | 4 fph | 5 fph | 6 fph | 7 fph | 8 fph | 9 fph | 10 fph | 11 fph | 12 fph | 13 fph | 14 fph | 15 fph | 16 fph | 17 fph | 18 fph | 19 fph | 20 fph | 21 fph | 22 fph | 23 fph | 24 fph | 25 fph | 26 fph | 27 fph | 28 fph | 29 fph | 30 fph | 31 fph | 32 fph | 33 fph | 34 fph | 35 fph | 36 fph | 37 fph | 38 fph | 39 fph | 40 fph | 41 fph | 42 fph | 43 fph | 44 fph | 45 fph | 46 fph | 47 fph | 48 fph | 49 fph | 50 fph | 51 fph | 52 fph | 53 fph | 54 fph | 55 fph | 56 fph | 57 fph | 58 fph | 59 fph | 60 fph | 61 fph | 62 fph | 63 fph | 64 fph | 65 fph | 66 fph | 67 fph | 68 fph | 69 fph | 70 fph | 71 fph | 72 fph | 73 fph | 74 fph | 75 fph | 76 fph | 77 fph | 78 fph | 79 fph | 80 fph | 81 fph | 82 fph | 83 fph | 84 fph | 85 fph | 86 fph | 87 fph | 88 fph | 89 fph | 90 fph | 91 fph | 92 fph | 93 fph | 94 fph | 95 fph | 96 fph | 97 fph | 98 fph | 99 fph | 100 fph |
speed of sound (68 °F) | 2.4684159378037 × 10-7 s | 4.9368318756074 × 10-7 s | 7.4052478134111 × 10-7 s | 9.8736637512148 × 10-7 s | 1.2342079689018 × 10-6 s | 1.4810495626822 × 10-6 s | 1.7278911564626 × 10-6 s | 1.974732750243 × 10-6 s | 2.2215743440233 × 10-6 s | 2.4684159378037 × 10-6 s | 2.7152575315841 × 10-6 s | 2.9620991253644 × 10-6 s | 3.2089407191448 × 10-6 s | 3.4557823129252 × 10-6 s | 3.7026239067055 × 10-6 s | 3.9494655004859 × 10-6 s | 4.1963070942663 × 10-6 s | 4.4431486880466 × 10-6 s | 4.689990281827 × 10-6 s | 4.9368318756074 × 10-6 s | 5.1836734693878 × 10-6 s | 5.4305150631681 × 10-6 s | 5.6773566569485 × 10-6 s | 5.9241982507289 × 10-6 s | 6.1710398445092 × 10-6 s | 6.4178814382896 × 10-6 s | 6.66472303207 × 10-6 s | 6.9115646258503 × 10-6 s | 7.1584062196307 × 10-6 s | 7.4052478134111 × 10-6 s | 7.6520894071914 × 10-6 s | 7.8989310009718 × 10-6 s | 8.1457725947522 × 10-6 s | 8.3926141885326 × 10-6 s | 8.6394557823129 × 10-6 s | 8.8862973760933 × 10-6 s | 9.1331389698737 × 10-6 s | 9.379980563654 × 10-6 s | 9.6268221574344 × 10-6 s | 9.8736637512148 × 10-6 s | 1.0120505344995 × 10-5 s | 1.0367346938776 × 10-5 s | 1.0614188532556 × 10-5 s | 1.0861030126336 × 10-5 s | 1.1107871720117 × 10-5 s | 1.1354713313897 × 10-5 s | 1.1601554907677 × 10-5 s | 1.1848396501458 × 10-5 s | 1.2095238095238 × 10-5 s | 1.2342079689018 × 10-5 s | 1.2588921282799 × 10-5 s | 1.2835762876579 × 10-5 s | 1.308260447036 × 10-5 s | 1.332944606414 × 10-5 s | 1.357628765792 × 10-5 s | 1.3823129251701 × 10-5 s | 1.4069970845481 × 10-5 s | 1.4316812439261 × 10-5 s | 1.4563654033042 × 10-5 s | 1.4810495626822 × 10-5 s | 1.5057337220603 × 10-5 s | 1.5304178814383 × 10-5 s | 1.5551020408163 × 10-5 s | 1.5797862001944 × 10-5 s | 1.6044703595724 × 10-5 s | 1.6291545189504 × 10-5 s | 1.6538386783285 × 10-5 s | 1.6785228377065 × 10-5 s | 1.7032069970845 × 10-5 s | 1.7278911564626 × 10-5 s | 1.7525753158406 × 10-5 s | 1.7772594752187 × 10-5 s | 1.8019436345967 × 10-5 s | 1.8266277939747 × 10-5 s | 1.8513119533528 × 10-5 s | 1.8759961127308 × 10-5 s | 1.9006802721088 × 10-5 s | 1.9253644314869 × 10-5 s | 1.9500485908649 × 10-5 s | 1.974732750243 × 10-5 s | 1.999416909621 × 10-5 s | 2.024101068999 × 10-5 s | 2.0487852283771 × 10-5 s | 2.0734693877551 × 10-5 s | 2.0981535471331 × 10-5 s | 2.1228377065112 × 10-5 s | 2.1475218658892 × 10-5 s | 2.1722060252673 × 10-5 s | 2.1968901846453 × 10-5 s | 2.2215743440233 × 10-5 s | 2.2462585034014 × 10-5 s | 2.2709426627794 × 10-5 s | 2.2956268221574 × 10-5 s | 2.3203109815355 × 10-5 s | 2.3449951409135 × 10-5 s | 2.3696793002915 × 10-5 s | 2.3943634596696 × 10-5 s | 2.4190476190476 × 10-5 s | 2.4437317784257 × 10-5 s | 2.4684159378037 × 10-5 s |
Foot per hour is unit of speed or velocity. It equals 0.00008466 meter per second. Plural name is feet / hour.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot per hour | fph | ≡ 1 ft/s ≡ 0.3048m/3600s | = 8.46×10−5 m/s | Imperial/US |
feet per hour | speed of sounds (68 °F) | feet per hour | speed of sounds (68 °F) |
---|---|---|---|
1 | ≈ 2.4684159378037E-7 | 6 | ≈ 1.4810495626822E-6 |
2 | ≈ 4.9368318756074E-7 | 7 | ≈ 1.7278911564626E-6 |
3 | ≈ 7.4052478134111E-7 | 8 | ≈ 1.974732750243E-6 |
4 | ≈ 9.8736637512148E-7 | 9 | ≈ 2.2215743440233E-6 |
5 | ≈ 1.2342079689018E-6 | 10 | ≈ 2.4684159378037E-6 |
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) | feet per hour | speed of sounds (68 °F) | feet per hour |
---|---|---|---|
1 | ≈ 4051181.1023622 | 6 | ≈ 24307086.614173 |
2 | ≈ 8102362.2047244 | 7 | ≈ 28358267.716535 |
3 | ≈ 12153543.307087 | 8 | ≈ 32409448.818898 |
4 | ≈ 16204724.409449 | 9 | ≈ 36460629.92126 |
5 | ≈ 20255905.511811 | 10 | ≈ 40511811.023622 |
feet per hour | speed of sounds (68 °F) |
---|---|
1 | ≈ 2.4684159378037 × 10-7 |
4,051,181.1023622 | ≈ 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 …) |