| square chain (international) | 1 sq ch | 2 sq ch | 3 sq ch | 4 sq ch | 5 sq ch | 6 sq ch | 7 sq ch | 8 sq ch | 9 sq ch | 10 sq ch | 11 sq ch | 12 sq ch | 13 sq ch | 14 sq ch | 15 sq ch | 16 sq ch | 17 sq ch | 18 sq ch | 19 sq ch | 20 sq ch | 21 sq ch | 22 sq ch | 23 sq ch | 24 sq ch | 25 sq ch | 26 sq ch | 27 sq ch | 28 sq ch | 29 sq ch | 30 sq ch | 31 sq ch | 32 sq ch | 33 sq ch | 34 sq ch | 35 sq ch | 36 sq ch | 37 sq ch | 38 sq ch | 39 sq ch | 40 sq ch | 41 sq ch | 42 sq ch | 43 sq ch | 44 sq ch | 45 sq ch | 46 sq ch | 47 sq ch | 48 sq ch | 49 sq ch | 50 sq ch | 51 sq ch | 52 sq ch | 53 sq ch | 54 sq ch | 55 sq ch | 56 sq ch | 57 sq ch | 58 sq ch | 59 sq ch | 60 sq ch | 61 sq ch | 62 sq ch | 63 sq ch | 64 sq ch | 65 sq ch | 66 sq ch | 67 sq ch | 68 sq ch | 69 sq ch | 70 sq ch | 71 sq ch | 72 sq ch | 73 sq ch | 74 sq ch | 75 sq ch | 76 sq ch | 77 sq ch | 78 sq ch | 79 sq ch | 80 sq ch | 81 sq ch | 82 sq ch | 83 sq ch | 84 sq ch | 85 sq ch | 86 sq ch | 87 sq ch | 88 sq ch | 89 sq ch | 90 sq ch | 91 sq ch | 92 sq ch | 93 sq ch | 94 sq ch | 95 sq ch | 96 sq ch | 97 sq ch | 98 sq ch | 99 sq ch | 100 sq ch |
| board | 52 272 bd | 104 544 bd | 156 816 bd | 209 088 bd | 261 360 bd | 313 632 bd | 365 904 bd | 418 176 bd | 470 448 bd | 522 720 bd | 574 992 bd | 627 264 bd | 679 536 bd | 731 808 bd | 784 080 bd | 836 352 bd | 888 624 bd | 940 896 bd | 993 168 bd | 1 045 440 bd | 1 097 712 bd | 1 149 984 bd | 1 202 256 bd | 1 254 528 bd | 1 306 800 bd | 1 359 072 bd | 1 411 344 bd | 1 463 616 bd | 1 515 888 bd | 1 568 160 bd | 1 620 432 bd | 1 672 704 bd | 1 724 976 bd | 1 777 248 bd | 1 829 520 bd | 1 881 792 bd | 1 934 064 bd | 1 986 336 bd | 2 038 608 bd | 2 090 880 bd | 2 143 152 bd | 2 195 424 bd | 2 247 696 bd | 2 299 968 bd | 2 352 240 bd | 2 404 512 bd | 2 456 784 bd | 2 509 056 bd | 2 561 328 bd | 2 613 600 bd | 2 665 872 bd | 2 718 144 bd | 2 770 416 bd | 2 822 688 bd | 2 874 960 bd | 2 927 232 bd | 2 979 504 bd | 3 031 776 bd | 3 084 048 bd | 3 136 320 bd | 3 188 592 bd | 3 240 864 bd | 3 293 136 bd | 3 345 408 bd | 3 397 680 bd | 3 449 952 bd | 3 502 224 bd | 3 554 496 bd | 3 606 768 bd | 3 659 040 bd | 3 711 312 bd | 3 763 584 bd | 3 815 856 bd | 3 868 128 bd | 3 920 400 bd | 3 972 672 bd | 4 024 944 bd | 4 077 216 bd | 4 129 488 bd | 4 181 760 bd | 4 234 032 bd | 4 286 304 bd | 4 338 576 bd | 4 390 848 bd | 4 443 120 bd | 4 495 392 bd | 4 547 664 bd | 4 599 936 bd | 4 652 208 bd | 4 704 480 bd | 4 756 752 bd | 4 809 024 bd | 4 861 296 bd | 4 913 568 bd | 4 965 840 bd | 5 018 112 bd | 5 070 384 bd | 5 122 656 bd | 5 174 928 bd | 5 227 200 bd |
square chain is a unit of area.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| square chain (international) | sq ch | ≡ 66 ft × 66 ft = 1⁄10 ac | ≡ 404.68564224 m2 | Imperial/US |
| square chains (international) | boards | square chains (international) | boards |
|---|---|---|---|
| 1 | ≡ 52272 | 6 | ≡ 313632 |
| 2 | ≡ 104544 | 7 | ≡ 365904 |
| 3 | ≡ 156816 | 8 | ≡ 418176 |
| 4 | ≡ 209088 | 9 | ≡ 470448 |
| 5 | ≡ 261360 | 10 | ≡ 522720 |
Board is a unit of area.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| board | bd | ≡ 1 in × 1 ft | ≡ 7.74192×10−3 m2 | Other |
| boards | square chains (international) | boards | square chains (international) |
|---|---|---|---|
| 1 | ≡ 1.9130700948883E-5 | 6 | ≡ 0.0001147842056933 |
| 2 | ≡ 3.8261401897766E-5 | 7 | ≡ 0.00013391490664218 |
| 3 | ≡ 5.7392102846648E-5 | 8 | ≡ 0.00015304560759106 |
| 4 | ≡ 7.6522803795531E-5 | 9 | ≡ 0.00017217630853994 |
| 5 | ≡ 9.5653504744414E-5 | 10 | ≡ 0.00019130700948883 |
| square chains (international) | boards |
|---|---|
| 1 | ≡ 52 272 |
| 1.9130700948883 × 10-5 | ≡ 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 …) |