rod | 1 rd | 2 rd | 3 rd | 4 rd | 5 rd | 6 rd | 7 rd | 8 rd | 9 rd | 10 rd | 11 rd | 12 rd | 13 rd | 14 rd | 15 rd | 16 rd | 17 rd | 18 rd | 19 rd | 20 rd | 21 rd | 22 rd | 23 rd | 24 rd | 25 rd | 26 rd | 27 rd | 28 rd | 29 rd | 30 rd | 31 rd | 32 rd | 33 rd | 34 rd | 35 rd | 36 rd | 37 rd | 38 rd | 39 rd | 40 rd | 41 rd | 42 rd | 43 rd | 44 rd | 45 rd | 46 rd | 47 rd | 48 rd | 49 rd | 50 rd | 51 rd | 52 rd | 53 rd | 54 rd | 55 rd | 56 rd | 57 rd | 58 rd | 59 rd | 60 rd | 61 rd | 62 rd | 63 rd | 64 rd | 65 rd | 66 rd | 67 rd | 68 rd | 69 rd | 70 rd | 71 rd | 72 rd | 73 rd | 74 rd | 75 rd | 76 rd | 77 rd | 78 rd | 79 rd | 80 rd | 81 rd | 82 rd | 83 rd | 84 rd | 85 rd | 86 rd | 87 rd | 88 rd | 89 rd | 90 rd | 91 rd | 92 rd | 93 rd | 94 rd | 95 rd | 96 rd | 97 rd | 98 rd | 99 rd | 100 rd |
micrometer | 5 029 200 μm | 10 058 400 μm | 15 087 600 μm | 20 116 800 μm | 25 146 000 μm | 30 175 200 μm | 35 204 400 μm | 40 233 600 μm | 45 262 800 μm | 50 292 000 μm | 55 321 200 μm | 60 350 400 μm | 65 379 600 μm | 70 408 800 μm | 75 438 000 μm | 80 467 200 μm | 85 496 400 μm | 90 525 600 μm | 95 554 800 μm | 100 584 000 μm | 105 613 200 μm | 110 642 400 μm | 115 671 600 μm | 120 700 800 μm | 125 730 000 μm | 130 759 200 μm | 135 788 400 μm | 140 817 600 μm | 145 846 800 μm | 150 876 000 μm | 155 905 200 μm | 160 934 400 μm | 165 963 600 μm | 170 992 800 μm | 176 022 000 μm | 181 051 200 μm | 186 080 400 μm | 191 109 600 μm | 196 138 800 μm | 201 168 000 μm | 206 197 200 μm | 211 226 400 μm | 216 255 600 μm | 221 284 800 μm | 226 314 000 μm | 231 343 200 μm | 236 372 400 μm | 241 401 600 μm | 246 430 800 μm | 251 460 000 μm | 256 489 200 μm | 261 518 400 μm | 266 547 600 μm | 271 576 800 μm | 276 606 000 μm | 281 635 200 μm | 286 664 400 μm | 291 693 600 μm | 296 722 800 μm | 301 752 000 μm | 306 781 200 μm | 311 810 400 μm | 316 839 600 μm | 321 868 800 μm | 326 898 000 μm | 331 927 200 μm | 336 956 400 μm | 341 985 600 μm | 347 014 800 μm | 352 044 000 μm | 357 073 200 μm | 362 102 400 μm | 367 131 600 μm | 372 160 800 μm | 377 190 000 μm | 382 219 200 μm | 387 248 400 μm | 392 277 600 μm | 397 306 800 μm | 402 336 000 μm | 407 365 200 μm | 412 394 400 μm | 417 423 600 μm | 422 452 800 μm | 427 482 000 μm | 432 511 200 μm | 437 540 400 μm | 442 569 600 μm | 447 598 800 μm | 452 628 000 μm | 457 657 200 μm | 462 686 400 μm | 467 715 600 μm | 472 744 800 μm | 477 774 000 μm | 482 803 200 μm | 487 832 400 μm | 492 861 600 μm | 497 890 800 μm | 502 920 000 μm |
The rod or perch or pole is a surveyors tool and unit of length equal to 5 1⁄2 yards, 16 1⁄2 feet, 1⁄320 of a statute mile or one-fourth of a surveyor's chain and 5.0292 meters.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
rod | rd | ≡ 16 1⁄2 ft | = 5.0292 m | Imperial/US |
rods | micrometers | rods | micrometers |
---|---|---|---|
1 | = 5029200 | 4 | = 20116800 |
1.5 | = 7543800 | 4.5 | = 22631400 |
2 | = 10058400 | 5 | = 25146000 |
2.5 | = 12573000 | 5.5 | = 27660600 |
3 | = 15087600 | 6 | = 30175200 |
The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling 1×10−6 of a metre (SI standard prefix "micro-" = 10−6); that is, one millionth of a metre (or one thousandth of a millimetre, 0.001 mm, or about 0.000039 inch).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
micrometer | μm | ≡ 1×10-6 m | ≡ 1×10-6 m | Metric system SI |
micrometers | rods | micrometers | rods |
---|---|---|---|
1 | = 1.9883878151595E-7 | 4 | = 7.9535512606379E-7 |
1.5 | = 2.9825817227392E-7 | 4.5 | = 8.9477451682176E-7 |
2 | = 3.9767756303189E-7 | 5 | = 9.9419390757973E-7 |
2.5 | = 4.9709695378987E-7 | 5.5 | = 1.0936132983377E-6 |
3 | = 5.9651634454784E-7 | 6 | = 1.1930326890957E-6 |
rods | micrometers |
---|---|
1 | = 5 029 200 |
1.9883878151595 × 10-7 | = 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 …) |