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How do you convert m/s to km/h?

Multiply the value in meters per second by 3.6. Unlike other speed conversions, this one rests on no imperial definition at all: it follows purely from the ratio between seconds and hours.

km/h = m/s × 3.6m/s = km/h ÷ 3.6

Where these two units are used

The meter per second is the SI unit of speed, and yet no road sign shows it: it lives in physics and in wind readings. The kilometer per hour appears on road signs in nearly every country, and it is the unit car speedometers read outside the English-speaking world. A factor of 3.6 separates physics from the dashboard: the 100 meters record of 9.58 s is 10.44 m/s, which a speed camera would show as 37.6 km/h.

Common speeds in m/s and km/h

1 m/s (slow walk)3.6 km/h
1.4 m/s (normal walk)5.0 km/h
2 m/s (brisk walk)7.2 km/h
5 m/s18 km/h
10 m/s (fresh breeze)36 km/h
12.3 m/s (Usain Bolt peak)44.3 km/h
15 m/s (Beaufort force 7)54 km/h
20 m/s72 km/h
33 m/s (hurricane)118.8 km/h
100 m/s360 km/h
340 m/s (speed of sound at 15 °C)1224 km/h
Show every value
  • 1 m/s = 3.6 km/h
  • 2 m/s = 7.2 km/h
  • 3 m/s = 10.8 km/h
  • 4 m/s = 14.4 km/h
  • 5 m/s = 18 km/h
  • 6 m/s = 21.6 km/h
  • 7 m/s = 25.2 km/h
  • 8 m/s = 28.8 km/h
  • 9 m/s = 32.4 km/h
  • 10 m/s = 36 km/h
  • 11 m/s = 39.6 km/h
  • 12 m/s = 43.2 km/h
  • 13 m/s = 46.8 km/h
  • 14 m/s = 50.4 km/h
  • 15 m/s = 54 km/h
  • 16 m/s = 57.6 km/h
  • 17 m/s = 61.2 km/h
  • 18 m/s = 64.8 km/h
  • 19 m/s = 68.4 km/h
  • 20 m/s = 72 km/h
  • 21 m/s = 75.6 km/h
  • 22 m/s = 79.2 km/h
  • 23 m/s = 82.8 km/h
  • 24 m/s = 86.4 km/h
  • 25 m/s = 90 km/h
  • 26 m/s = 93.6 km/h
  • 27 m/s = 97.2 km/h
  • 28 m/s = 100.8 km/h
  • 29 m/s = 104.4 km/h
  • 30 m/s = 108 km/h
  • 31 m/s = 111.6 km/h
  • 32 m/s = 115.2 km/h
  • 33 m/s = 118.8 km/h
  • 34 m/s = 122.4 km/h
  • 35 m/s = 126 km/h
  • 36 m/s = 129.6 km/h
  • 37 m/s = 133.2 km/h
  • 38 m/s = 136.8 km/h
  • 39 m/s = 140.4 km/h
  • 40 m/s = 144 km/h
  • 41 m/s = 147.6 km/h
  • 42 m/s = 151.2 km/h
  • 43 m/s = 154.8 km/h
  • 44 m/s = 158.4 km/h
  • 45 m/s = 162 km/h
  • 46 m/s = 165.6 km/h
  • 47 m/s = 169.2 km/h
  • 48 m/s = 172.8 km/h
  • 49 m/s = 176.4 km/h
  • 50 m/s = 180 km/h
  • 51 m/s = 183.6 km/h
  • 52 m/s = 187.2 km/h
  • 53 m/s = 190.8 km/h
  • 54 m/s = 194.4 km/h
  • 55 m/s = 198 km/h
  • 56 m/s = 201.6 km/h
  • 57 m/s = 205.2 km/h
  • 58 m/s = 208.8 km/h
  • 59 m/s = 212.4 km/h
  • 60 m/s = 216 km/h
  • 61 m/s = 219.6 km/h
  • 62 m/s = 223.2 km/h
  • 63 m/s = 226.8 km/h
  • 64 m/s = 230.4 km/h
  • 65 m/s = 234 km/h
  • 66 m/s = 237.6 km/h
  • 67 m/s = 241.2 km/h
  • 68 m/s = 244.8 km/h
  • 69 m/s = 248.4 km/h
  • 70 m/s = 252 km/h
  • 71 m/s = 255.6 km/h
  • 72 m/s = 259.2 km/h
  • 73 m/s = 262.8 km/h
  • 74 m/s = 266.4 km/h
  • 75 m/s = 270 km/h
  • 76 m/s = 273.6 km/h
  • 77 m/s = 277.2 km/h
  • 78 m/s = 280.8 km/h
  • 79 m/s = 284.4 km/h
  • 80 m/s = 288 km/h
  • 81 m/s = 291.6 km/h
  • 82 m/s = 295.2 km/h
  • 83 m/s = 298.8 km/h
  • 84 m/s = 302.4 km/h
  • 85 m/s = 306 km/h
  • 86 m/s = 309.6 km/h
  • 87 m/s = 313.2 km/h
  • 88 m/s = 316.8 km/h
  • 89 m/s = 320.4 km/h
  • 90 m/s = 324 km/h
  • 91 m/s = 327.6 km/h
  • 92 m/s = 331.2 km/h
  • 93 m/s = 334.8 km/h
  • 94 m/s = 338.4 km/h
  • 95 m/s = 342 km/h
  • 96 m/s = 345.6 km/h
  • 97 m/s = 349.2 km/h
  • 98 m/s = 352.8 km/h
  • 99 m/s = 356.4 km/h
  • 100 m/s = 360 km/h
  • 101 m/s = 363.6 km/h
  • 102 m/s = 367.2 km/h
  • 103 m/s = 370.8 km/h
  • 104 m/s = 374.4 km/h
  • 105 m/s = 378 km/h
  • 106 m/s = 381.6 km/h
  • 107 m/s = 385.2 km/h
  • 108 m/s = 388.8 km/h
  • 109 m/s = 392.4 km/h
  • 110 m/s = 396 km/h
  • 111 m/s = 399.6 km/h
  • 112 m/s = 403.2 km/h
  • 113 m/s = 406.8 km/h
  • 114 m/s = 410.4 km/h
  • 115 m/s = 414 km/h
  • 116 m/s = 417.6 km/h
  • 117 m/s = 421.2 km/h
  • 118 m/s = 424.8 km/h
  • 119 m/s = 428.4 km/h
  • 120 m/s = 432 km/h
  • 121 m/s = 435.6 km/h
  • 122 m/s = 439.2 km/h
  • 123 m/s = 442.8 km/h
  • 124 m/s = 446.4 km/h
  • 125 m/s = 450 km/h
  • 126 m/s = 453.6 km/h
  • 127 m/s = 457.2 km/h
  • 128 m/s = 460.8 km/h
  • 129 m/s = 464.4 km/h
  • 130 m/s = 468 km/h
  • 131 m/s = 471.6 km/h
  • 132 m/s = 475.2 km/h
  • 133 m/s = 478.8 km/h
  • 134 m/s = 482.4 km/h
  • 135 m/s = 486 km/h
  • 136 m/s = 489.6 km/h
  • 137 m/s = 493.2 km/h
  • 138 m/s = 496.8 km/h
  • 139 m/s = 500.4 km/h
  • 140 m/s = 504 km/h
  • 141 m/s = 507.6 km/h
  • 142 m/s = 511.2 km/h
  • 143 m/s = 514.8 km/h
  • 144 m/s = 518.4 km/h
  • 145 m/s = 522 km/h
  • 146 m/s = 525.6 km/h
  • 147 m/s = 529.2 km/h
  • 148 m/s = 532.8 km/h
  • 149 m/s = 536.4 km/h
  • 150 m/s = 540 km/h
  • 151 m/s = 543.6 km/h
  • 152 m/s = 547.2 km/h
  • 153 m/s = 550.8 km/h
  • 154 m/s = 554.4 km/h
  • 155 m/s = 558 km/h
  • 156 m/s = 561.6 km/h
  • 157 m/s = 565.2 km/h
  • 158 m/s = 568.8 km/h
  • 159 m/s = 572.4 km/h
  • 160 m/s = 576 km/h
  • 161 m/s = 579.6 km/h
  • 162 m/s = 583.2 km/h
  • 163 m/s = 586.8 km/h
  • 164 m/s = 590.4 km/h
  • 165 m/s = 594 km/h
  • 166 m/s = 597.6 km/h
  • 167 m/s = 601.2 km/h
  • 168 m/s = 604.8 km/h
  • 169 m/s = 608.4 km/h
  • 170 m/s = 612 km/h
  • 171 m/s = 615.6 km/h
  • 172 m/s = 619.2 km/h
  • 173 m/s = 622.8 km/h
  • 174 m/s = 626.4 km/h
  • 175 m/s = 630 km/h
  • 176 m/s = 633.6 km/h
  • 177 m/s = 637.2 km/h
  • 178 m/s = 640.8 km/h
  • 179 m/s = 644.4 km/h
  • 180 m/s = 648 km/h
  • 181 m/s = 651.6 km/h
  • 182 m/s = 655.2 km/h
  • 183 m/s = 658.8 km/h
  • 184 m/s = 662.4 km/h
  • 185 m/s = 666 km/h
  • 186 m/s = 669.6 km/h
  • 187 m/s = 673.2 km/h
  • 188 m/s = 676.8 km/h
  • 189 m/s = 680.4 km/h
  • 190 m/s = 684 km/h
  • 191 m/s = 687.6 km/h
  • 192 m/s = 691.2 km/h
  • 193 m/s = 694.8 km/h
  • 194 m/s = 698.4 km/h
  • 195 m/s = 702 km/h
  • 196 m/s = 705.6 km/h
  • 197 m/s = 709.2 km/h
  • 198 m/s = 712.8 km/h
  • 199 m/s = 716.4 km/h
  • 200 m/s = 720 km/h
  • 205 m/s = 738 km/h
  • 210 m/s = 756 km/h
  • 215 m/s = 774 km/h
  • 220 m/s = 792 km/h
  • 225 m/s = 810 km/h
  • 230 m/s = 828 km/h
  • 235 m/s = 846 km/h
  • 240 m/s = 864 km/h
  • 245 m/s = 882 km/h
  • 250 m/s = 900 km/h
  • 255 m/s = 918 km/h
  • 260 m/s = 936 km/h
  • 265 m/s = 954 km/h
  • 270 m/s = 972 km/h
  • 275 m/s = 990 km/h
  • 280 m/s = 1,008 km/h
  • 285 m/s = 1,026 km/h
  • 290 m/s = 1,044 km/h
  • 295 m/s = 1,062 km/h
  • 300 m/s = 1,080 km/h
  • 305 m/s = 1,098 km/h
  • 310 m/s = 1,116 km/h
  • 315 m/s = 1,134 km/h
  • 320 m/s = 1,152 km/h
  • 325 m/s = 1,170 km/h
  • 330 m/s = 1,188 km/h
  • 335 m/s = 1,206 km/h
  • 340 m/s = 1,224 km/h
  • 345 m/s = 1,242 km/h
  • 350 m/s = 1,260 km/h
  • 355 m/s = 1,278 km/h
  • 360 m/s = 1,296 km/h
  • 365 m/s = 1,314 km/h
  • 370 m/s = 1,332 km/h
  • 375 m/s = 1,350 km/h
  • 380 m/s = 1,368 km/h
  • 385 m/s = 1,386 km/h
  • 390 m/s = 1,404 km/h
  • 395 m/s = 1,422 km/h
  • 400 m/s = 1,440 km/h
  • 405 m/s = 1,458 km/h
  • 410 m/s = 1,476 km/h
  • 415 m/s = 1,494 km/h
  • 420 m/s = 1,512 km/h
  • 425 m/s = 1,530 km/h
  • 430 m/s = 1,548 km/h
  • 435 m/s = 1,566 km/h
  • 440 m/s = 1,584 km/h
  • 445 m/s = 1,602 km/h
  • 450 m/s = 1,620 km/h
  • 455 m/s = 1,638 km/h
  • 460 m/s = 1,656 km/h
  • 465 m/s = 1,674 km/h
  • 470 m/s = 1,692 km/h
  • 475 m/s = 1,710 km/h
  • 480 m/s = 1,728 km/h
  • 485 m/s = 1,746 km/h
  • 490 m/s = 1,764 km/h
  • 495 m/s = 1,782 km/h
  • 500 m/s = 1,800 km/h
  • 510 m/s = 1,836 km/h
  • 520 m/s = 1,872 km/h
  • 530 m/s = 1,908 km/h
  • 540 m/s = 1,944 km/h
  • 550 m/s = 1,980 km/h
  • 560 m/s = 2,016 km/h
  • 570 m/s = 2,052 km/h
  • 580 m/s = 2,088 km/h
  • 590 m/s = 2,124 km/h
  • 600 m/s = 2,160 km/h
  • 610 m/s = 2,196 km/h
  • 620 m/s = 2,232 km/h
  • 630 m/s = 2,268 km/h
  • 640 m/s = 2,304 km/h
  • 650 m/s = 2,340 km/h
  • 660 m/s = 2,376 km/h
  • 670 m/s = 2,412 km/h
  • 680 m/s = 2,448 km/h
  • 690 m/s = 2,484 km/h
  • 700 m/s = 2,520 km/h
  • 710 m/s = 2,556 km/h
  • 720 m/s = 2,592 km/h
  • 730 m/s = 2,628 km/h
  • 740 m/s = 2,664 km/h
  • 750 m/s = 2,700 km/h
  • 760 m/s = 2,736 km/h
  • 770 m/s = 2,772 km/h
  • 780 m/s = 2,808 km/h
  • 790 m/s = 2,844 km/h
  • 800 m/s = 2,880 km/h
  • 810 m/s = 2,916 km/h
  • 820 m/s = 2,952 km/h
  • 830 m/s = 2,988 km/h
  • 840 m/s = 3,024 km/h
  • 850 m/s = 3,060 km/h
  • 860 m/s = 3,096 km/h
  • 870 m/s = 3,132 km/h
  • 880 m/s = 3,168 km/h
  • 890 m/s = 3,204 km/h
  • 900 m/s = 3,240 km/h
  • 910 m/s = 3,276 km/h
  • 920 m/s = 3,312 km/h
  • 930 m/s = 3,348 km/h
  • 940 m/s = 3,384 km/h
  • 950 m/s = 3,420 km/h
  • 960 m/s = 3,456 km/h
  • 970 m/s = 3,492 km/h
  • 980 m/s = 3,528 km/h
  • 990 m/s = 3,564 km/h
  • 1,000 m/s = 3,600 km/h
  • 1,025 m/s = 3,690 km/h
  • 1,050 m/s = 3,780 km/h
  • 1,075 m/s = 3,870 km/h
  • 1,100 m/s = 3,960 km/h
  • 1,125 m/s = 4,050 km/h
  • 1,150 m/s = 4,140 km/h
  • 1,175 m/s = 4,230 km/h
  • 1,200 m/s = 4,320 km/h
  • 1,225 m/s = 4,410 km/h
  • 1,250 m/s = 4,500 km/h
  • 1,275 m/s = 4,590 km/h
  • 1,300 m/s = 4,680 km/h
  • 1,325 m/s = 4,770 km/h
  • 1,350 m/s = 4,860 km/h
  • 1,375 m/s = 4,950 km/h
  • 1,400 m/s = 5,040 km/h
  • 1,425 m/s = 5,130 km/h
  • 1,450 m/s = 5,220 km/h
  • 1,475 m/s = 5,310 km/h
  • 1,500 m/s = 5,400 km/h
  • 1,525 m/s = 5,490 km/h
  • 1,550 m/s = 5,580 km/h
  • 1,575 m/s = 5,670 km/h
  • 1,600 m/s = 5,760 km/h
  • 1,625 m/s = 5,850 km/h
  • 1,650 m/s = 5,940 km/h
  • 1,675 m/s = 6,030 km/h
  • 1,700 m/s = 6,120 km/h
  • 1,725 m/s = 6,210 km/h
  • 1,750 m/s = 6,300 km/h
  • 1,775 m/s = 6,390 km/h
  • 1,800 m/s = 6,480 km/h
  • 1,825 m/s = 6,570 km/h
  • 1,850 m/s = 6,660 km/h
  • 1,875 m/s = 6,750 km/h
  • 1,900 m/s = 6,840 km/h
  • 1,925 m/s = 6,930 km/h
  • 1,950 m/s = 7,020 km/h
  • 1,975 m/s = 7,110 km/h
  • 2,000 m/s = 7,200 km/h
  • 2,050 m/s = 7,380 km/h
  • 2,100 m/s = 7,560 km/h
  • 2,150 m/s = 7,740 km/h
  • 2,200 m/s = 7,920 km/h
  • 2,250 m/s = 8,100 km/h
  • 2,300 m/s = 8,280 km/h
  • 2,350 m/s = 8,460 km/h
  • 2,400 m/s = 8,640 km/h
  • 2,450 m/s = 8,820 km/h
  • 2,500 m/s = 9,000 km/h
  • 2,550 m/s = 9,180 km/h
  • 2,600 m/s = 9,360 km/h
  • 2,650 m/s = 9,540 km/h
  • 2,700 m/s = 9,720 km/h
  • 2,750 m/s = 9,900 km/h
  • 2,800 m/s = 10,080 km/h
  • 2,850 m/s = 10,260 km/h
  • 2,900 m/s = 10,440 km/h
  • 2,950 m/s = 10,620 km/h
  • 3,000 m/s = 10,800 km/h
  • 3,050 m/s = 10,980 km/h
  • 3,100 m/s = 11,160 km/h
  • 3,150 m/s = 11,340 km/h
  • 3,200 m/s = 11,520 km/h
  • 3,250 m/s = 11,700 km/h
  • 3,300 m/s = 11,880 km/h
  • 3,350 m/s = 12,060 km/h
  • 3,400 m/s = 12,240 km/h
  • 3,450 m/s = 12,420 km/h
  • 3,500 m/s = 12,600 km/h
  • 3,550 m/s = 12,780 km/h
  • 3,600 m/s = 12,960 km/h
  • 3,650 m/s = 13,140 km/h
  • 3,700 m/s = 13,320 km/h
  • 3,750 m/s = 13,500 km/h
  • 3,800 m/s = 13,680 km/h
  • 3,850 m/s = 13,860 km/h
  • 3,900 m/s = 14,040 km/h
  • 3,950 m/s = 14,220 km/h
  • 4,000 m/s = 14,400 km/h
  • 4,050 m/s = 14,580 km/h
  • 4,100 m/s = 14,760 km/h
  • 4,150 m/s = 14,940 km/h
  • 4,200 m/s = 15,120 km/h
  • 4,250 m/s = 15,300 km/h
  • 4,300 m/s = 15,480 km/h
  • 4,350 m/s = 15,660 km/h
  • 4,400 m/s = 15,840 km/h
  • 4,450 m/s = 16,020 km/h
  • 4,500 m/s = 16,200 km/h
  • 4,550 m/s = 16,380 km/h
  • 4,600 m/s = 16,560 km/h
  • 4,650 m/s = 16,740 km/h
  • 4,700 m/s = 16,920 km/h
  • 4,750 m/s = 17,100 km/h
  • 4,800 m/s = 17,280 km/h
  • 4,850 m/s = 17,460 km/h
  • 4,900 m/s = 17,640 km/h
  • 4,950 m/s = 17,820 km/h
  • 5,000 m/s = 18,000 km/h
  • 5,100 m/s = 18,360 km/h
  • 5,200 m/s = 18,720 km/h
  • 5,300 m/s = 19,080 km/h
  • 5,400 m/s = 19,440 km/h
  • 5,500 m/s = 19,800 km/h
  • 5,600 m/s = 20,160 km/h
  • 5,700 m/s = 20,520 km/h
  • 5,800 m/s = 20,880 km/h
  • 5,900 m/s = 21,240 km/h
  • 6,000 m/s = 21,600 km/h
  • 6,100 m/s = 21,960 km/h
  • 6,200 m/s = 22,320 km/h
  • 6,300 m/s = 22,680 km/h
  • 6,400 m/s = 23,040 km/h
  • 6,500 m/s = 23,400 km/h
  • 6,600 m/s = 23,760 km/h
  • 6,700 m/s = 24,120 km/h
  • 6,800 m/s = 24,480 km/h
  • 6,900 m/s = 24,840 km/h
  • 7,000 m/s = 25,200 km/h
  • 7,100 m/s = 25,560 km/h
  • 7,200 m/s = 25,920 km/h
  • 7,300 m/s = 26,280 km/h
  • 7,400 m/s = 26,640 km/h
  • 7,500 m/s = 27,000 km/h
  • 7,600 m/s = 27,360 km/h
  • 7,700 m/s = 27,720 km/h
  • 7,800 m/s = 28,080 km/h
  • 7,900 m/s = 28,440 km/h
  • 8,000 m/s = 28,800 km/h
  • 8,100 m/s = 29,160 km/h
  • 8,200 m/s = 29,520 km/h
  • 8,300 m/s = 29,880 km/h
  • 8,400 m/s = 30,240 km/h
  • 8,500 m/s = 30,600 km/h
  • 8,600 m/s = 30,960 km/h
  • 8,700 m/s = 31,320 km/h
  • 8,800 m/s = 31,680 km/h
  • 8,900 m/s = 32,040 km/h
  • 9,000 m/s = 32,400 km/h
  • 9,100 m/s = 32,760 km/h
  • 9,200 m/s = 33,120 km/h
  • 9,300 m/s = 33,480 km/h
  • 9,400 m/s = 33,840 km/h
  • 9,500 m/s = 34,200 km/h
  • 9,600 m/s = 34,560 km/h
  • 9,700 m/s = 34,920 km/h
  • 9,800 m/s = 35,280 km/h
  • 9,900 m/s = 35,640 km/h
  • 10,000 m/s = 36,000 km/h

The meter per second is the SI unit of speed. The factor 3.6 is exact by construction: 3,600 s/h ÷ 1,000 m/km. Methodology & sources.

Frequently asked questions

Why do meteorologists work in m/s?

Because it is the SI unit and the one forecasting models use. National weather services in many countries publish wind in m/s; France and the UK convert it to km/h or knots for the public.

How fast is a sprinter in m/s?

Usain Bolt covered his 100 m record at an average 10.44 m/s, or 37.6 km/h, with a measured peak of 12.3 m/s, or 44.3 km/h. A recreational runner sits closer to 3 or 4 m/s.

How do I rebuild the 3.6 factor without memorizing it?

An hour holds 3,600 seconds and a kilometer 1,000 meters. Travelling at 1 m/s therefore covers 3,600 meters in an hour, which is 3.6 km. The factor comes back in two steps.

Is a published wind speed an average or a peak?

An average. The World Meteorological Organization standard is the ten-minute mean wind measured ten meters above ground. Gusts are three-second peaks and run about 40% above the mean over open terrain: a mean of 15 m/s, 54 km/h, comes with gusts near 21 m/s, 76 km/h. The United States publishes a one-minute mean for tropical cyclones, which raises the figure for the same wind.

How do I turn a speed in m/s into a running pace?

Divide 16.67 by the speed to get minutes per kilometer. At 3.33 m/s, which is 12 km/h, the pace is five minutes per kilometer. An elite marathon runner holds about 5.8 m/s, 21 km/h, or 2 minutes 51 seconds per kilometer.

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