Hoe reken je voet per seconde naar meter per seconde om?
Vermenigvuldig met 0,3048, of deel door drie en haal er een beetje af. Honderd voet per seconde is 30,48 meter per seconde.
Waar deze twee eenheden dienen
De meter per seconde is de SI-eenheid van snelheid, en toch toont geen enkel verkeersbord hem: hij leeft in de natuurkunde en in windmetingen. De vrije val wordt in beide uitgesproken: 9,81 m/s² aan de ene kant, 32,2 ft/s² aan de andere, en het is de snelheid die een losgelaten voorwerp elke seconde wint, afhankelijk van welke tabel u leest.
Omrekentabel van voet per seconde naar meter per seconde
| 1 ft/s | 0,30 m/s |
| 3,28 ft/s | 1,00 m/s |
| 5 ft/s | 1,52 m/s |
| 10 ft/s | 3,05 m/s |
| 16,67 ft/s | 5,08 m/s |
| 30 ft/s | 9,14 m/s |
| 50 ft/s | 15,24 m/s |
| 88 ft/s | 26,82 m/s |
| 100 ft/s | 30,48 m/s |
| 176 ft/s | 53,64 m/s |
| 1.125 ft/s | 342,90 m/s |
Alle waarden tonen
- 1 ft/s = 0,3048 m/s
- 2 ft/s = 0,6096 m/s
- 3 ft/s = 0,9144 m/s
- 4 ft/s = 1,2192 m/s
- 5 ft/s = 1,524 m/s
- 6 ft/s = 1,8288 m/s
- 7 ft/s = 2,1336 m/s
- 8 ft/s = 2,4384 m/s
- 9 ft/s = 2,7432 m/s
- 10 ft/s = 3,048 m/s
- 11 ft/s = 3,3528 m/s
- 12 ft/s = 3,6576 m/s
- 13 ft/s = 3,9624 m/s
- 14 ft/s = 4,2672 m/s
- 15 ft/s = 4,572 m/s
- 16 ft/s = 4,8768 m/s
- 17 ft/s = 5,1816 m/s
- 18 ft/s = 5,4864 m/s
- 19 ft/s = 5,7912 m/s
- 20 ft/s = 6,096 m/s
- 21 ft/s = 6,4008 m/s
- 22 ft/s = 6,7056 m/s
- 23 ft/s = 7,0104 m/s
- 24 ft/s = 7,3152 m/s
- 25 ft/s = 7,62 m/s
- 26 ft/s = 7,9248 m/s
- 27 ft/s = 8,2296 m/s
- 28 ft/s = 8,5344 m/s
- 29 ft/s = 8,8392 m/s
- 30 ft/s = 9,144 m/s
- 31 ft/s = 9,4488 m/s
- 32 ft/s = 9,7536 m/s
- 33 ft/s = 10,0584 m/s
- 34 ft/s = 10,3632 m/s
- 35 ft/s = 10,668 m/s
- 36 ft/s = 10,9728 m/s
- 37 ft/s = 11,2776 m/s
- 38 ft/s = 11,5824 m/s
- 39 ft/s = 11,8872 m/s
- 40 ft/s = 12,192 m/s
- 41 ft/s = 12,4968 m/s
- 42 ft/s = 12,8016 m/s
- 43 ft/s = 13,1064 m/s
- 44 ft/s = 13,4112 m/s
- 45 ft/s = 13,716 m/s
- 46 ft/s = 14,0208 m/s
- 47 ft/s = 14,3256 m/s
- 48 ft/s = 14,6304 m/s
- 49 ft/s = 14,9352 m/s
- 50 ft/s = 15,24 m/s
- 51 ft/s = 15,5448 m/s
- 52 ft/s = 15,8496 m/s
- 53 ft/s = 16,1544 m/s
- 54 ft/s = 16,4592 m/s
- 55 ft/s = 16,764 m/s
- 56 ft/s = 17,0688 m/s
- 57 ft/s = 17,3736 m/s
- 58 ft/s = 17,6784 m/s
- 59 ft/s = 17,9832 m/s
- 60 ft/s = 18,288 m/s
- 61 ft/s = 18,5928 m/s
- 62 ft/s = 18,8976 m/s
- 63 ft/s = 19,2024 m/s
- 64 ft/s = 19,5072 m/s
- 65 ft/s = 19,812 m/s
- 66 ft/s = 20,1168 m/s
- 67 ft/s = 20,4216 m/s
- 68 ft/s = 20,7264 m/s
- 69 ft/s = 21,0312 m/s
- 70 ft/s = 21,336 m/s
- 71 ft/s = 21,6408 m/s
- 72 ft/s = 21,9456 m/s
- 73 ft/s = 22,2504 m/s
- 74 ft/s = 22,5552 m/s
- 75 ft/s = 22,86 m/s
- 76 ft/s = 23,1648 m/s
- 77 ft/s = 23,4696 m/s
- 78 ft/s = 23,7744 m/s
- 79 ft/s = 24,0792 m/s
- 80 ft/s = 24,384 m/s
- 81 ft/s = 24,6888 m/s
- 82 ft/s = 24,9936 m/s
- 83 ft/s = 25,2984 m/s
- 84 ft/s = 25,6032 m/s
- 85 ft/s = 25,908 m/s
- 86 ft/s = 26,2128 m/s
- 87 ft/s = 26,5176 m/s
- 88 ft/s = 26,8224 m/s
- 89 ft/s = 27,1272 m/s
- 90 ft/s = 27,432 m/s
- 91 ft/s = 27,7368 m/s
- 92 ft/s = 28,0416 m/s
- 93 ft/s = 28,3464 m/s
- 94 ft/s = 28,6512 m/s
- 95 ft/s = 28,956 m/s
- 96 ft/s = 29,2608 m/s
- 97 ft/s = 29,5656 m/s
- 98 ft/s = 29,8704 m/s
- 99 ft/s = 30,1752 m/s
- 100 ft/s = 30,48 m/s
- 101 ft/s = 30,7848 m/s
- 102 ft/s = 31,0896 m/s
- 103 ft/s = 31,3944 m/s
- 104 ft/s = 31,6992 m/s
- 105 ft/s = 32,004 m/s
- 106 ft/s = 32,3088 m/s
- 107 ft/s = 32,6136 m/s
- 108 ft/s = 32,9184 m/s
- 109 ft/s = 33,2232 m/s
- 110 ft/s = 33,528 m/s
- 111 ft/s = 33,8328 m/s
- 112 ft/s = 34,1376 m/s
- 113 ft/s = 34,4424 m/s
- 114 ft/s = 34,7472 m/s
- 115 ft/s = 35,052 m/s
- 116 ft/s = 35,3568 m/s
- 117 ft/s = 35,6616 m/s
- 118 ft/s = 35,9664 m/s
- 119 ft/s = 36,2712 m/s
- 120 ft/s = 36,576 m/s
- 121 ft/s = 36,8808 m/s
- 122 ft/s = 37,1856 m/s
- 123 ft/s = 37,4904 m/s
- 124 ft/s = 37,7952 m/s
- 125 ft/s = 38,1 m/s
- 126 ft/s = 38,4048 m/s
- 127 ft/s = 38,7096 m/s
- 128 ft/s = 39,0144 m/s
- 129 ft/s = 39,3192 m/s
- 130 ft/s = 39,624 m/s
- 131 ft/s = 39,9288 m/s
- 132 ft/s = 40,2336 m/s
- 133 ft/s = 40,5384 m/s
- 134 ft/s = 40,8432 m/s
- 135 ft/s = 41,148 m/s
- 136 ft/s = 41,4528 m/s
- 137 ft/s = 41,7576 m/s
- 138 ft/s = 42,0624 m/s
- 139 ft/s = 42,3672 m/s
- 140 ft/s = 42,672 m/s
- 141 ft/s = 42,9768 m/s
- 142 ft/s = 43,2816 m/s
- 143 ft/s = 43,5864 m/s
- 144 ft/s = 43,8912 m/s
- 145 ft/s = 44,196 m/s
- 146 ft/s = 44,5008 m/s
- 147 ft/s = 44,8056 m/s
- 148 ft/s = 45,1104 m/s
- 149 ft/s = 45,4152 m/s
- 150 ft/s = 45,72 m/s
- 151 ft/s = 46,0248 m/s
- 152 ft/s = 46,3296 m/s
- 153 ft/s = 46,6344 m/s
- 154 ft/s = 46,9392 m/s
- 155 ft/s = 47,244 m/s
- 156 ft/s = 47,5488 m/s
- 157 ft/s = 47,8536 m/s
- 158 ft/s = 48,1584 m/s
- 159 ft/s = 48,4632 m/s
- 160 ft/s = 48,768 m/s
- 161 ft/s = 49,0728 m/s
- 162 ft/s = 49,3776 m/s
- 163 ft/s = 49,6824 m/s
- 164 ft/s = 49,9872 m/s
- 165 ft/s = 50,292 m/s
- 166 ft/s = 50,5968 m/s
- 167 ft/s = 50,9016 m/s
- 168 ft/s = 51,2064 m/s
- 169 ft/s = 51,5112 m/s
- 170 ft/s = 51,816 m/s
- 171 ft/s = 52,1208 m/s
- 172 ft/s = 52,4256 m/s
- 173 ft/s = 52,7304 m/s
- 174 ft/s = 53,0352 m/s
- 175 ft/s = 53,34 m/s
- 176 ft/s = 53,6448 m/s
- 177 ft/s = 53,9496 m/s
- 178 ft/s = 54,2544 m/s
- 179 ft/s = 54,5592 m/s
- 180 ft/s = 54,864 m/s
- 181 ft/s = 55,1688 m/s
- 182 ft/s = 55,4736 m/s
- 183 ft/s = 55,7784 m/s
- 184 ft/s = 56,0832 m/s
- 185 ft/s = 56,388 m/s
- 186 ft/s = 56,6928 m/s
- 187 ft/s = 56,9976 m/s
- 188 ft/s = 57,3024 m/s
- 189 ft/s = 57,6072 m/s
- 190 ft/s = 57,912 m/s
- 191 ft/s = 58,2168 m/s
- 192 ft/s = 58,5216 m/s
- 193 ft/s = 58,8264 m/s
- 194 ft/s = 59,1312 m/s
- 195 ft/s = 59,436 m/s
- 196 ft/s = 59,7408 m/s
- 197 ft/s = 60,0456 m/s
- 198 ft/s = 60,3504 m/s
- 199 ft/s = 60,6552 m/s
- 200 ft/s = 60,96 m/s
- 205 ft/s = 62,484 m/s
- 210 ft/s = 64,008 m/s
- 215 ft/s = 65,532 m/s
- 220 ft/s = 67,056 m/s
- 225 ft/s = 68,58 m/s
- 230 ft/s = 70,104 m/s
- 235 ft/s = 71,628 m/s
- 240 ft/s = 73,152 m/s
- 245 ft/s = 74,676 m/s
- 250 ft/s = 76,2 m/s
- 255 ft/s = 77,724 m/s
- 260 ft/s = 79,248 m/s
- 265 ft/s = 80,772 m/s
- 270 ft/s = 82,296 m/s
- 275 ft/s = 83,82 m/s
- 280 ft/s = 85,344 m/s
- 285 ft/s = 86,868 m/s
- 290 ft/s = 88,392 m/s
- 295 ft/s = 89,916 m/s
- 300 ft/s = 91,44 m/s
- 305 ft/s = 92,964 m/s
- 310 ft/s = 94,488 m/s
- 315 ft/s = 96,012 m/s
- 320 ft/s = 97,536 m/s
- 325 ft/s = 99,06 m/s
- 330 ft/s = 100,584 m/s
- 335 ft/s = 102,108 m/s
- 340 ft/s = 103,632 m/s
- 345 ft/s = 105,156 m/s
- 350 ft/s = 106,68 m/s
- 355 ft/s = 108,204 m/s
- 360 ft/s = 109,728 m/s
- 365 ft/s = 111,252 m/s
- 370 ft/s = 112,776 m/s
- 375 ft/s = 114,3 m/s
- 380 ft/s = 115,824 m/s
- 385 ft/s = 117,348 m/s
- 390 ft/s = 118,872 m/s
- 395 ft/s = 120,396 m/s
- 400 ft/s = 121,92 m/s
- 405 ft/s = 123,444 m/s
- 410 ft/s = 124,968 m/s
- 415 ft/s = 126,492 m/s
- 420 ft/s = 128,016 m/s
- 425 ft/s = 129,54 m/s
- 430 ft/s = 131,064 m/s
- 435 ft/s = 132,588 m/s
- 440 ft/s = 134,112 m/s
- 445 ft/s = 135,636 m/s
- 450 ft/s = 137,16 m/s
- 455 ft/s = 138,684 m/s
- 460 ft/s = 140,208 m/s
- 465 ft/s = 141,732 m/s
- 470 ft/s = 143,256 m/s
- 475 ft/s = 144,78 m/s
- 480 ft/s = 146,304 m/s
- 485 ft/s = 147,828 m/s
- 490 ft/s = 149,352 m/s
- 495 ft/s = 150,876 m/s
- 500 ft/s = 152,4 m/s
- 510 ft/s = 155,448 m/s
- 520 ft/s = 158,496 m/s
- 530 ft/s = 161,544 m/s
- 540 ft/s = 164,592 m/s
- 550 ft/s = 167,64 m/s
- 560 ft/s = 170,688 m/s
- 570 ft/s = 173,736 m/s
- 580 ft/s = 176,784 m/s
- 590 ft/s = 179,832 m/s
- 600 ft/s = 182,88 m/s
- 610 ft/s = 185,928 m/s
- 620 ft/s = 188,976 m/s
- 630 ft/s = 192,024 m/s
- 640 ft/s = 195,072 m/s
- 650 ft/s = 198,12 m/s
- 660 ft/s = 201,168 m/s
- 670 ft/s = 204,216 m/s
- 680 ft/s = 207,264 m/s
- 690 ft/s = 210,312 m/s
- 700 ft/s = 213,36 m/s
- 710 ft/s = 216,408 m/s
- 720 ft/s = 219,456 m/s
- 730 ft/s = 222,504 m/s
- 740 ft/s = 225,552 m/s
- 750 ft/s = 228,6 m/s
- 760 ft/s = 231,648 m/s
- 770 ft/s = 234,696 m/s
- 780 ft/s = 237,744 m/s
- 790 ft/s = 240,792 m/s
- 800 ft/s = 243,84 m/s
- 810 ft/s = 246,888 m/s
- 820 ft/s = 249,936 m/s
- 830 ft/s = 252,984 m/s
- 840 ft/s = 256,032 m/s
- 850 ft/s = 259,08 m/s
- 860 ft/s = 262,128 m/s
- 870 ft/s = 265,176 m/s
- 880 ft/s = 268,224 m/s
- 890 ft/s = 271,272 m/s
- 900 ft/s = 274,32 m/s
- 910 ft/s = 277,368 m/s
- 920 ft/s = 280,416 m/s
- 930 ft/s = 283,464 m/s
- 940 ft/s = 286,512 m/s
- 950 ft/s = 289,56 m/s
- 960 ft/s = 292,608 m/s
- 970 ft/s = 295,656 m/s
- 980 ft/s = 298,704 m/s
- 990 ft/s = 301,752 m/s
- 1.000 ft/s = 304,8 m/s
- 1.025 ft/s = 312,42 m/s
- 1.050 ft/s = 320,04 m/s
- 1.075 ft/s = 327,66 m/s
- 1.100 ft/s = 335,28 m/s
- 1.125 ft/s = 342,9 m/s
- 1.150 ft/s = 350,52 m/s
- 1.175 ft/s = 358,14 m/s
- 1.200 ft/s = 365,76 m/s
- 1.225 ft/s = 373,38 m/s
- 1.250 ft/s = 381 m/s
- 1.275 ft/s = 388,62 m/s
- 1.300 ft/s = 396,24 m/s
- 1.325 ft/s = 403,86 m/s
- 1.350 ft/s = 411,48 m/s
- 1.375 ft/s = 419,1 m/s
- 1.400 ft/s = 426,72 m/s
- 1.425 ft/s = 434,34 m/s
- 1.450 ft/s = 441,96 m/s
- 1.475 ft/s = 449,58 m/s
- 1.500 ft/s = 457,2 m/s
- 1.525 ft/s = 464,82 m/s
- 1.550 ft/s = 472,44 m/s
- 1.575 ft/s = 480,06 m/s
- 1.600 ft/s = 487,68 m/s
- 1.625 ft/s = 495,3 m/s
- 1.650 ft/s = 502,92 m/s
- 1.675 ft/s = 510,54 m/s
- 1.700 ft/s = 518,16 m/s
- 1.725 ft/s = 525,78 m/s
- 1.750 ft/s = 533,4 m/s
- 1.775 ft/s = 541,02 m/s
- 1.800 ft/s = 548,64 m/s
- 1.825 ft/s = 556,26 m/s
- 1.850 ft/s = 563,88 m/s
- 1.875 ft/s = 571,5 m/s
- 1.900 ft/s = 579,12 m/s
- 1.925 ft/s = 586,74 m/s
- 1.950 ft/s = 594,36 m/s
- 1.975 ft/s = 601,98 m/s
- 2.000 ft/s = 609,6 m/s
- 2.050 ft/s = 624,84 m/s
- 2.100 ft/s = 640,08 m/s
- 2.150 ft/s = 655,32 m/s
- 2.200 ft/s = 670,56 m/s
- 2.250 ft/s = 685,8 m/s
- 2.300 ft/s = 701,04 m/s
- 2.350 ft/s = 716,28 m/s
- 2.400 ft/s = 731,52 m/s
- 2.450 ft/s = 746,76 m/s
- 2.500 ft/s = 762 m/s
- 2.550 ft/s = 777,24 m/s
- 2.600 ft/s = 792,48 m/s
- 2.650 ft/s = 807,72 m/s
- 2.700 ft/s = 822,96 m/s
- 2.750 ft/s = 838,2 m/s
- 2.800 ft/s = 853,44 m/s
- 2.850 ft/s = 868,68 m/s
- 2.900 ft/s = 883,92 m/s
- 2.950 ft/s = 899,16 m/s
- 3.000 ft/s = 914,4 m/s
- 3.050 ft/s = 929,64 m/s
- 3.100 ft/s = 944,88 m/s
- 3.150 ft/s = 960,12 m/s
- 3.200 ft/s = 975,36 m/s
- 3.250 ft/s = 990,6 m/s
- 3.300 ft/s = 1.005,84 m/s
- 3.350 ft/s = 1.021,08 m/s
- 3.400 ft/s = 1.036,32 m/s
- 3.450 ft/s = 1.051,56 m/s
- 3.500 ft/s = 1.066,8 m/s
- 3.550 ft/s = 1.082,04 m/s
- 3.600 ft/s = 1.097,28 m/s
- 3.650 ft/s = 1.112,52 m/s
- 3.700 ft/s = 1.127,76 m/s
- 3.750 ft/s = 1.143 m/s
- 3.800 ft/s = 1.158,24 m/s
- 3.850 ft/s = 1.173,48 m/s
- 3.900 ft/s = 1.188,72 m/s
- 3.950 ft/s = 1.203,96 m/s
- 4.000 ft/s = 1.219,2 m/s
- 4.050 ft/s = 1.234,44 m/s
- 4.100 ft/s = 1.249,68 m/s
- 4.150 ft/s = 1.264,92 m/s
- 4.200 ft/s = 1.280,16 m/s
- 4.250 ft/s = 1.295,4 m/s
- 4.300 ft/s = 1.310,64 m/s
- 4.350 ft/s = 1.325,88 m/s
- 4.400 ft/s = 1.341,12 m/s
- 4.450 ft/s = 1.356,36 m/s
- 4.500 ft/s = 1.371,6 m/s
- 4.550 ft/s = 1.386,84 m/s
- 4.600 ft/s = 1.402,08 m/s
- 4.650 ft/s = 1.417,32 m/s
- 4.700 ft/s = 1.432,56 m/s
- 4.750 ft/s = 1.447,8 m/s
- 4.800 ft/s = 1.463,04 m/s
- 4.850 ft/s = 1.478,28 m/s
- 4.900 ft/s = 1.493,52 m/s
- 4.950 ft/s = 1.508,76 m/s
- 5.000 ft/s = 1.524 m/s
- 5.100 ft/s = 1.554,48 m/s
- 5.200 ft/s = 1.584,96 m/s
- 5.300 ft/s = 1.615,44 m/s
- 5.400 ft/s = 1.645,92 m/s
- 5.500 ft/s = 1.676,4 m/s
- 5.600 ft/s = 1.706,88 m/s
- 5.700 ft/s = 1.737,36 m/s
- 5.800 ft/s = 1.767,84 m/s
- 5.900 ft/s = 1.798,32 m/s
- 6.000 ft/s = 1.828,8 m/s
- 6.100 ft/s = 1.859,28 m/s
- 6.200 ft/s = 1.889,76 m/s
- 6.300 ft/s = 1.920,24 m/s
- 6.400 ft/s = 1.950,72 m/s
- 6.500 ft/s = 1.981,2 m/s
- 6.600 ft/s = 2.011,68 m/s
- 6.700 ft/s = 2.042,16 m/s
- 6.800 ft/s = 2.072,64 m/s
- 6.900 ft/s = 2.103,12 m/s
- 7.000 ft/s = 2.133,6 m/s
- 7.100 ft/s = 2.164,08 m/s
- 7.200 ft/s = 2.194,56 m/s
- 7.300 ft/s = 2.225,04 m/s
- 7.400 ft/s = 2.255,52 m/s
- 7.500 ft/s = 2.286 m/s
- 7.600 ft/s = 2.316,48 m/s
- 7.700 ft/s = 2.346,96 m/s
- 7.800 ft/s = 2.377,44 m/s
- 7.900 ft/s = 2.407,92 m/s
- 8.000 ft/s = 2.438,4 m/s
- 8.100 ft/s = 2.468,88 m/s
- 8.200 ft/s = 2.499,36 m/s
- 8.300 ft/s = 2.529,84 m/s
- 8.400 ft/s = 2.560,32 m/s
- 8.500 ft/s = 2.590,8 m/s
- 8.600 ft/s = 2.621,28 m/s
- 8.700 ft/s = 2.651,76 m/s
- 8.800 ft/s = 2.682,24 m/s
- 8.900 ft/s = 2.712,72 m/s
- 9.000 ft/s = 2.743,2 m/s
- 9.100 ft/s = 2.773,68 m/s
- 9.200 ft/s = 2.804,16 m/s
- 9.300 ft/s = 2.834,64 m/s
- 9.400 ft/s = 2.865,12 m/s
- 9.500 ft/s = 2.895,6 m/s
- 9.600 ft/s = 2.926,08 m/s
- 9.700 ft/s = 2.956,56 m/s
- 9.800 ft/s = 2.987,04 m/s
- 9.900 ft/s = 3.017,52 m/s
- 10.000 ft/s = 3.048 m/s
De internationale voet is sinds het akkoord over yard en pound van 1959 precies 0,3048 meter, en daarom is de factor exact. Methode en bronnen.
Veelgestelde vragen
Waarom is 0,3048 exact en niet afgerond?
Omdat de voet geen gemeten lengte meer is maar een breukdeel van de meter. Het internationale akkoord over yard en pound van 1959 legde de yard vast op precies 0,9144 meter, en dus de voet op 0,3048. Vóór dat akkoord verschilden de Amerikaanse en de Britse voet twee delen per miljoen, genoeg om optica en luchtvaart te hinderen. Elke snelheid in voet per seconde rekent dus zonder verlies om.
Waarom schrijft de Amerikaanse techniek 32,174?
Omdat dat de standaardzwaartekracht in voet per seconde in het kwadraat is. De 9,80665 m/s² van de SI wordt 32,174 ft/s², en dat is het getal dat in Amerikaanse formules voor mechanica en ballistiek opduikt. Een vrij vallend lichaam wint dus elke seconde 32,174 ft/s aan snelheid, luchtweerstand nog niet meegerekend.
Wat is een verticale snelheid van 1000 voet per minuut?
5,08 meter per seconde, dus 16,67 voet per seconde. De luchtvaart telt klimmen en dalen in voet per minuut en niet per seconde, en een verkeersvliegtuig daalt gewoonlijk met 1000 of 1500 ft/min. Delen door zestig brengt u op voet per seconde, en vermenigvuldigen met 0,3048 op meter per seconde.
Boven welke snelheid is munitie supersoon?
Boven ruwweg 1125 voet per seconde, dus 343 meter per seconde, de geluidssnelheid in lucht bij twintig graden. De Amerikaanse ballistiek geeft mondingssnelheden in voet per seconde: een 9 mm zit rond 1150 ft/s, dus 350 m/s, en gaat dus net over de geluidsbarrière, wat de scherpe knal veroorzaakt. Subsone munitie wordt bewust onder die drempel gehouden.
Hoe ga je van voet per seconde naar mijl per uur?
Vermenigvuldig met 0,6818, of met 1,097 voor kilometer per uur. Honderd voet per seconde is 68,2 mph en 109,7 km/h. De makkelijkste vuistregel loopt andersom: vijftien voet per seconde is ruwweg tien mijl per uur, wat volstaat om een Amerikaanse windsnelheid te lezen zonder rekenmachine.