| chain | 1 ch | 2 ch | 3 ch | 4 ch | 5 ch | 6 ch | 7 ch | 8 ch | 9 ch | 10 ch | 11 ch | 12 ch | 13 ch | 14 ch | 15 ch | 16 ch | 17 ch | 18 ch | 19 ch | 20 ch | 21 ch | 22 ch | 23 ch | 24 ch | 25 ch | 26 ch | 27 ch | 28 ch | 29 ch | 30 ch | 31 ch | 32 ch | 33 ch | 34 ch | 35 ch | 36 ch | 37 ch | 38 ch | 39 ch | 40 ch | 41 ch | 42 ch | 43 ch | 44 ch | 45 ch | 46 ch | 47 ch | 48 ch | 49 ch | 50 ch | 51 ch | 52 ch | 53 ch | 54 ch | 55 ch | 56 ch | 57 ch | 58 ch | 59 ch | 60 ch | 61 ch | 62 ch | 63 ch | 64 ch | 65 ch | 66 ch | 67 ch | 68 ch | 69 ch | 70 ch | 71 ch | 72 ch | 73 ch | 74 ch | 75 ch | 76 ch | 77 ch | 78 ch | 79 ch | 80 ch | 81 ch | 82 ch | 83 ch | 84 ch | 85 ch | 86 ch | 87 ch | 88 ch | 89 ch | 90 ch | 91 ch | 92 ch | 93 ch | 94 ch | 95 ch | 96 ch | 97 ch | 98 ch | 99 ch | 100 ch |
| nanometer | 20 116 840 000 nm | 40 233 680 000 nm | 60 350 520 000 nm | 80 467 360 000 nm | 100 584 200 000 nm | 120 701 040 000 nm | 140 817 880 000 nm | 160 934 720 000 nm | 181 051 560 000 nm | 201 168 400 000 nm | 221 285 240 000 nm | 241 402 080 000 nm | 261 518 920 000 nm | 281 635 760 000 nm | 301 752 600 000 nm | 321 869 440 000 nm | 341 986 280 000 nm | 362 103 120 000 nm | 382 219 960 000 nm | 402 336 800 000 nm | 422 453 640 000 nm | 442 570 480 000 nm | 462 687 320 000 nm | 482 804 160 000 nm | 502 921 000 000 nm | 523 037 840 000 nm | 543 154 680 000 nm | 563 271 520 000 nm | 583 388 360 000 nm | 603 505 200 000 nm | 623 622 040 000 nm | 643 738 880 000 nm | 663 855 720 000 nm | 683 972 560 000 nm | 704 089 400 000 nm | 724 206 240 000 nm | 744 323 080 000 nm | 764 439 920 000 nm | 784 556 760 000 nm | 804 673 600 000 nm | 824 790 440 000 nm | 844 907 280 000 nm | 865 024 120 000 nm | 885 140 960 000 nm | 905 257 800 000 nm | 925 374 640 000 nm | 945 491 480 000 nm | 965 608 320 000 nm | 985 725 160 000 nm | 1 005 842 000 000 nm | 1 025 958 840 000 nm | 1 046 075 680 000 nm | 1 066 192 520 000 nm | 1 086 309 360 000 nm | 1 106 426 200 000 nm | 1 126 543 040 000 nm | 1 146 659 880 000 nm | 1 166 776 720 000 nm | 1 186 893 560 000 nm | 1 207 010 400 000 nm | 1 227 127 240 000 nm | 1 247 244 080 000 nm | 1 267 360 920 000 nm | 1 287 477 760 000 nm | 1 307 594 600 000 nm | 1 327 711 440 000 nm | 1 347 828 280 000 nm | 1 367 945 120 000 nm | 1 388 061 960 000 nm | 1 408 178 800 000 nm | 1 428 295 640 000 nm | 1 448 412 480 000 nm | 1 468 529 320 000 nm | 1 488 646 160 000 nm | 1 508 763 000 000 nm | 1 528 879 840 000 nm | 1 548 996 680 000 nm | 1 569 113 520 000 nm | 1 589 230 360 000 nm | 1 609 347 200 000 nm | 1 629 464 040 000 nm | 1 649 580 880 000 nm | 1 669 697 720 000 nm | 1 689 814 560 000 nm | 1 709 931 400 000 nm | 1 730 048 240 000 nm | 1 750 165 080 000 nm | 1 770 281 920 000 nm | 1 790 398 760 000 nm | 1 810 515 600 000 nm | 1 830 632 440 000 nm | 1 850 749 280 000 nm | 1 870 866 120 000 nm | 1 890 982 960 000 nm | 1 911 099 800 000 nm | 1 931 216 640 000 nm | 1 951 333 480 000 nm | 1 971 450 320 000 nm | 1 991 567 160 000 nm | 2 011 684 000 000 nm |
A chain is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
| 1 chains ≈ 20116840000 nanometers | 4 chains ≈ 80467360000 nanometers |
| 1.5 chains ≈ 30175260000 nanometers | 4.5 chains ≈ 90525780000 nanometers |
| 2 chains ≈ 40233680000 nanometers | 5 chains ≈ 100584200000 nanometers |
| 2.5 chains ≈ 50292100000 nanometers | 5.5 chains ≈ 110642620000 nanometers |
| 3 chains ≈ 60350520000 nanometers | 6 chains ≈ 120701040000 nanometers |
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth of a metre (0.000000001 m). The name combines the SI prefix nano- (from the Ancient Greek νάνος, nanos, "dwarf") with the parent unit name metre (from Greek μέτρον, metrοn, "unit of measurement"). It can be written in scientific notation as 1×10−9 m, in engineering notation as 1 E−9 m, and is simply 1/1000000000 metres.
| 1 nanometers ≈ 4.9709596537031E-11 chains | 4 nanometers ≈ 1.9883838614812E-10 chains |
| 1.5 nanometers ≈ 7.4564394805546E-11 chains | 4.5 nanometers ≈ 2.2369318441664E-10 chains |
| 2 nanometers ≈ 9.9419193074061E-11 chains | 5 nanometers ≈ 2.4854798268515E-10 chains |
| 2.5 nanometers ≈ 1.2427399134258E-10 chains | 5.5 nanometers ≈ 2.7340278095367E-10 chains |
| 3 nanometers ≈ 1.4912878961109E-10 chains | 6 nanometers ≈ 2.9825757922218E-10 chains |
| 1 chains ≈ 20 116 840 000 nanometers |
| 1 nanometers ≈ 4.9709596537031 × 10-11 chains |