board | 1 bd | 2 bd | 3 bd | 4 bd | 5 bd | 6 bd | 7 bd | 8 bd | 9 bd | 10 bd | 11 bd | 12 bd | 13 bd | 14 bd | 15 bd | 16 bd | 17 bd | 18 bd | 19 bd | 20 bd | 21 bd | 22 bd | 23 bd | 24 bd | 25 bd | 26 bd | 27 bd | 28 bd | 29 bd | 30 bd | 31 bd | 32 bd | 33 bd | 34 bd | 35 bd | 36 bd | 37 bd | 38 bd | 39 bd | 40 bd | 41 bd | 42 bd | 43 bd | 44 bd | 45 bd | 46 bd | 47 bd | 48 bd | 49 bd | 50 bd | 51 bd | 52 bd | 53 bd | 54 bd | 55 bd | 56 bd | 57 bd | 58 bd | 59 bd | 60 bd | 61 bd | 62 bd | 63 bd | 64 bd | 65 bd | 66 bd | 67 bd | 68 bd | 69 bd | 70 bd | 71 bd | 72 bd | 73 bd | 74 bd | 75 bd | 76 bd | 77 bd | 78 bd | 79 bd | 80 bd | 81 bd | 82 bd | 83 bd | 84 bd | 85 bd | 86 bd | 87 bd | 88 bd | 89 bd | 90 bd | 91 bd | 92 bd | 93 bd | 94 bd | 95 bd | 96 bd | 97 bd | 98 bd | 99 bd | 100 bd |
circular inch | 15.2788739 circ in | 30.5577478 circ in | 45.8366217 circ in | 61.1154956 circ in | 76.3943695 circ in | 91.6732434 circ in | 106.9521173 circ in | 122.2309913 circ in | 137.5098652 circ in | 152.7887391 circ in | 168.0676130 circ in | 183.3464869 circ in | 198.6253608 circ in | 213.9042347 circ in | 229.1831086 circ in | 244.4619825 circ in | 259.7408564 circ in | 275.0197303 circ in | 290.2986042 circ in | 305.5774781 circ in | 320.8563520 circ in | 336.1352259 circ in | 351.4140999 circ in | 366.6929738 circ in | 381.9718477 circ in | 397.2507216 circ in | 412.5295955 circ in | 427.8084694 circ in | 443.0873433 circ in | 458.3662172 circ in | 473.6450911 circ in | 488.9239650 circ in | 504.2028389 circ in | 519.4817128 circ in | 534.7605867 circ in | 550.0394606 circ in | 565.3183345 circ in | 580.5972084 circ in | 595.8760824 circ in | 611.1549563 circ in | 626.4338302 circ in | 641.7127041 circ in | 656.9915780 circ in | 672.2704519 circ in | 687.5493258 circ in | 702.8281997 circ in | 718.1070736 circ in | 733.3859475 circ in | 748.6648214 circ in | 763.9436953 circ in | 779.2225692 circ in | 794.5014431 circ in | 809.7803170 circ in | 825.0591910 circ in | 840.3380649 circ in | 855.6169388 circ in | 870.8958127 circ in | 886.1746866 circ in | 901.4535605 circ in | 916.7324344 circ in | 932.0113083 circ in | 947.2901822 circ in | 962.5690561 circ in | 977.8479300 circ in | 993.1268039 circ in | 1,008.4056778 circ in | 1,023.6845517 circ in | 1,038.9634256 circ in | 1,054.2422996 circ in | 1,069.5211735 circ in | 1,084.8000474 circ in | 1,100.0789213 circ in | 1,115.3577952 circ in | 1,130.6366691 circ in | 1,145.9155430 circ in | 1,161.1944169 circ in | 1,176.4732908 circ in | 1,191.7521647 circ in | 1,207.0310386 circ in | 1,222.3099125 circ in | 1,237.5887864 circ in | 1,252.8676603 circ in | 1,268.1465342 circ in | 1,283.4254081 circ in | 1,298.7042821 circ in | 1,313.9831560 circ in | 1,329.2620299 circ in | 1,344.5409038 circ in | 1,359.8197777 circ in | 1,375.0986516 circ in | 1,390.3775255 circ in | 1,405.6563994 circ in | 1,420.9352733 circ in | 1,436.2141472 circ in | 1,451.4930211 circ in | 1,466.7718950 circ in | 1,482.0507689 circ in | 1,497.3296428 circ in | 1,512.6085167 circ in | 1,527.8873907 circ in |
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 | circular inches | boards | circular inches |
---|---|---|---|
1 | = 15.278873906544 | 6 | = 91.673243439262 |
2 | = 30.557747813087 | 7 | = 106.95211734581 |
3 | = 45.836621719631 | 8 | = 122.23099125235 |
4 | = 61.115495626175 | 9 | = 137.50986515889 |
5 | = 76.394369532719 | 10 | = 152.78873906544 |
circular inch is a unit of area. it uses in Imperial/US system. it exactly equal π⁄4 sq in and approximately ≈ 5.067075 × 10−4 m2
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
circular inch | circ in | ≡ π⁄4 sq in | ≈ 5.067075×10−4 m2 | Imperial/US |
circular inches | boards | circular inches | boards |
---|---|---|---|
1 | = 0.065449849649699 | 6 | = 0.3926990978982 |
2 | = 0.1308996992994 | 7 | = 0.4581489475479 |
3 | = 0.1963495489491 | 8 | = 0.52359879719759 |
4 | = 0.2617993985988 | 9 | = 0.58904864684729 |
5 | = 0.3272492482485 | 10 | = 0.65449849649699 |
boards | circular inches |
---|---|
1 | = 15.2788739 |
0.0654498 | = 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 …) |