| 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 |
| foot per second | 1,125.3280840 fps | 2,250.6561680 fps | 3,375.9842520 fps | 4,501.3123360 fps | 5,626.6404199 fps | 6,751.9685039 fps | 7,877.2965879 fps | 9,002.6246719 fps | 10,127.9527559 fps | 11,253.2808399 fps | 12,378.6089239 fps | 13,503.9370079 fps | 14,629.2650919 fps | 15,754.5931759 fps | 16,879.9212598 fps | 18,005.2493438 fps | 19,130.5774278 fps | 20,255.9055118 fps | 21,381.2335958 fps | 22,506.5616798 fps | 23,631.8897638 fps | 24,757.2178478 fps | 25,882.5459318 fps | 27,007.8740157 fps | 28,133.2020997 fps | 29,258.5301837 fps | 30,383.8582677 fps | 31,509.1863517 fps | 32,634.5144357 fps | 33,759.8425197 fps | 34,885.1706037 fps | 36,010.4986877 fps | 37,135.8267717 fps | 38,261.1548556 fps | 39,386.4829396 fps | 40,511.8110236 fps | 41,637.1391076 fps | 42,762.4671916 fps | 43,887.7952756 fps | 45,013.1233596 fps | 46,138.4514436 fps | 47,263.7795276 fps | 48,389.1076115 fps | 49,514.4356955 fps | 50,639.7637795 fps | 51,765.0918635 fps | 52,890.4199475 fps | 54,015.7480315 fps | 55,141.0761155 fps | 56,266.4041995 fps | 57,391.7322835 fps | 58,517.0603675 fps | 59,642.3884514 fps | 60,767.7165354 fps | 61,893.0446194 fps | 63,018.3727034 fps | 64,143.7007874 fps | 65,269.0288714 fps | 66,394.3569554 fps | 67,519.6850394 fps | 68,645.0131234 fps | 69,770.3412073 fps | 70,895.6692913 fps | 72,020.9973753 fps | 73,146.3254593 fps | 74,271.6535433 fps | 75,396.9816273 fps | 76,522.3097113 fps | 77,647.6377953 fps | 78,772.9658793 fps | 79,898.2939633 fps | 81,023.6220472 fps | 82,148.9501312 fps | 83,274.2782152 fps | 84,399.6062992 fps | 85,524.9343832 fps | 86,650.2624672 fps | 87,775.5905512 fps | 88,900.9186352 fps | 90,026.2467192 fps | 91,151.5748032 fps | 92,276.9028871 fps | 93,402.2309711 fps | 94,527.5590551 fps | 95,652.8871391 fps | 96,778.2152231 fps | 97,903.5433071 fps | 99,028.8713911 fps | 100,154.1994751 fps | 101,279.5275591 fps | 102,404.8556430 fps | 103,530.1837270 fps | 104,655.5118110 fps | 105,780.8398950 fps | 106,906.167979 fps | 108,031.4960630 fps | 109,156.8241470 fps | 110,282.1522310 fps | 111,407.4803150 fps | 112,532.8083990 fps |
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) ≈ 1125.3280839895 feet per second | 6 speed of sounds (68 °F) ≈ 6751.968503937 feet per second |
| 2 speed of sounds (68 °F) ≈ 2250.656167979 feet per second | 7 speed of sounds (68 °F) ≈ 7877.2965879265 feet per second |
| 3 speed of sounds (68 °F) ≈ 3375.9842519685 feet per second | 8 speed of sounds (68 °F) ≈ 9002.624671916 feet per second |
| 4 speed of sounds (68 °F) ≈ 4501.312335958 feet per second | 9 speed of sounds (68 °F) ≈ 10127.952755906 feet per second |
| 5 speed of sounds (68 °F) ≈ 5626.6404199475 feet per second | 10 speed of sounds (68 °F) ≈ 11253.280839895 feet per second |
Foot per second is unit of speed, its symbol is fps. It equals to 0.3048 meter per second or 60 feet per minute. Plural name is feet / second.
| 1 feet per second ≈ 0.00088862973760933 speed of sounds (68 °F) | 6 feet per second ≈ 0.005331778425656 speed of sounds (68 °F) |
| 2 feet per second ≈ 0.0017772594752187 speed of sounds (68 °F) | 7 feet per second ≈ 0.0062204081632653 speed of sounds (68 °F) |
| 3 feet per second ≈ 0.002665889212828 speed of sounds (68 °F) | 8 feet per second ≈ 0.0071090379008746 speed of sounds (68 °F) |
| 4 feet per second ≈ 0.0035545189504373 speed of sounds (68 °F) | 9 feet per second ≈ 0.007997667638484 speed of sounds (68 °F) |
| 5 feet per second ≈ 0.0044431486880466 speed of sounds (68 °F) | 10 feet per second ≈ 0.0088862973760933 speed of sounds (68 °F) |
| 1 speed of sounds (68 °F) ≈ 1,125.3280840 feet per second |
| 1 feet per second ≈ 0.0008886 speed of sounds (68 °F) |