meter | 1 m | 2 m | 3 m | 4 m | 5 m | 6 m | 7 m | 8 m | 9 m | 10 m | 11 m | 12 m | 13 m | 14 m | 15 m | 16 m | 17 m | 18 m | 19 m | 20 m | 21 m | 22 m | 23 m | 24 m | 25 m | 26 m | 27 m | 28 m | 29 m | 30 m | 31 m | 32 m | 33 m | 34 m | 35 m | 36 m | 37 m | 38 m | 39 m | 40 m | 41 m | 42 m | 43 m | 44 m | 45 m | 46 m | 47 m | 48 m | 49 m | 50 m | 51 m | 52 m | 53 m | 54 m | 55 m | 56 m | 57 m | 58 m | 59 m | 60 m | 61 m | 62 m | 63 m | 64 m | 65 m | 66 m | 67 m | 68 m | 69 m | 70 m | 71 m | 72 m | 73 m | 74 m | 75 m | 76 m | 77 m | 78 m | 79 m | 80 m | 81 m | 82 m | 83 m | 84 m | 85 m | 86 m | 87 m | 88 m | 89 m | 90 m | 91 m | 92 m | 93 m | 94 m | 95 m | 96 m | 97 m | 98 m | 99 m | 100 m |
span | 4.3744532 span | 8.7489064 span | 13.1233596 span | 17.4978128 span | 21.8722660 span | 26.2467192 span | 30.6211724 span | 34.9956255 span | 39.3700787 span | 43.7445319 span | 48.1189851 span | 52.4934383 span | 56.8678915 span | 61.2423447 span | 65.6167979 span | 69.9912511 span | 74.3657043 span | 78.7401575 span | 83.1146107 span | 87.4890639 span | 91.8635171 span | 96.2379703 span | 100.6124234 span | 104.9868766 span | 109.3613298 span | 113.7357830 span | 118.1102362 span | 122.4846894 span | 126.8591426 span | 131.2335958 span | 135.6080490 span | 139.9825022 span | 144.3569554 span | 148.7314086 span | 153.1058618 span | 157.4803150 span | 161.8547682 span | 166.2292213 span | 170.6036745 span | 174.9781277 span | 179.3525809 span | 183.7270341 span | 188.1014873 span | 192.4759405 span | 196.8503937 span | 201.2248469 span | 205.5993001 span | 209.9737533 span | 214.3482065 span | 218.7226597 span | 223.0971129 span | 227.4715661 span | 231.8460192 span | 236.2204724 span | 240.5949256 span | 244.9693788 span | 249.3438320 span | 253.7182852 span | 258.0927384 span | 262.4671916 span | 266.8416448 span | 271.2160980 span | 275.5905512 span | 279.9650044 span | 284.3394576 span | 288.7139108 span | 293.0883640 span | 297.4628171 span | 301.8372703 span | 306.2117235 span | 310.5861767 span | 314.9606299 span | 319.3350831 span | 323.7095363 span | 328.0839895 span | 332.4584427 span | 336.8328959 span | 341.2073491 span | 345.5818023 span | 349.9562555 span | 354.3307087 span | 358.7051619 span | 363.0796150 span | 367.4540682 span | 371.8285214 span | 376.2029746 span | 380.5774278 span | 384.9518810 span | 389.3263342 span | 393.7007874 span | 398.0752406 span | 402.4496938 span | 406.8241470 span | 411.1986002 span | 415.5730534 span | 419.9475066 span | 424.3219598 span | 428.6964129 span | 433.0708661 span | 437.4453193 span |
The metre (international spelling) or meter (American spelling) (from the Greek noun μέτρον, "measure") is the base unit of length in the International System of Units (SI). The SI unit symbol is m. The metre is defined as the length of the path travelled by light in a vacuum in 1/299 792 458 seconds.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
meter | m | ≡ Distance light travels in 1⁄299792458 of a second in vacuum. | ≡ 1 m | Metric system SI |
meters | spans | meters | spans |
---|---|---|---|
1 | = 4.3744531933508 | 4 | = 17.497812773403 |
1.5 | = 6.5616797900262 | 4.5 | = 19.685039370079 |
2 | = 8.7489063867017 | 5 | = 21.872265966754 |
2.5 | = 10.936132983377 | 5.5 | = 24.05949256343 |
3 | = 13.123359580052 | 6 | = 26.246719160105 |
A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times, a span was considered to be half a cubit. Sometimes the distinction is made between the great span (thumb to little finger) and little span (index finger to little finger).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
span | span | ≡ 9 in | = 0.2286 m | Imperial/US |
spans | meters | spans | meters |
---|---|---|---|
1 | = 0.2286 | 4 | = 0.9144 |
1.5 | = 0.3429 | 4.5 | = 1.0287 |
2 | = 0.4572 | 5 | = 1.143 |
2.5 | = 0.5715 | 5.5 | = 1.2573 |
3 | = 0.6858 | 6 | = 1.3716 |
meters | spans |
---|---|
1 | = 4.3744532 |
0.2286 | = 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 …) |