circular inch | 1 circ in | 2 circ in | 3 circ in | 4 circ in | 5 circ in | 6 circ in | 7 circ in | 8 circ in | 9 circ in | 10 circ in | 11 circ in | 12 circ in | 13 circ in | 14 circ in | 15 circ in | 16 circ in | 17 circ in | 18 circ in | 19 circ in | 20 circ in | 21 circ in | 22 circ in | 23 circ in | 24 circ in | 25 circ in | 26 circ in | 27 circ in | 28 circ in | 29 circ in | 30 circ in | 31 circ in | 32 circ in | 33 circ in | 34 circ in | 35 circ in | 36 circ in | 37 circ in | 38 circ in | 39 circ in | 40 circ in | 41 circ in | 42 circ in | 43 circ in | 44 circ in | 45 circ in | 46 circ in | 47 circ in | 48 circ in | 49 circ in | 50 circ in | 51 circ in | 52 circ in | 53 circ in | 54 circ in | 55 circ in | 56 circ in | 57 circ in | 58 circ in | 59 circ in | 60 circ in | 61 circ in | 62 circ in | 63 circ in | 64 circ in | 65 circ in | 66 circ in | 67 circ in | 68 circ in | 69 circ in | 70 circ in | 71 circ in | 72 circ in | 73 circ in | 74 circ in | 75 circ in | 76 circ in | 77 circ in | 78 circ in | 79 circ in | 80 circ in | 81 circ in | 82 circ in | 83 circ in | 84 circ in | 85 circ in | 86 circ in | 87 circ in | 88 circ in | 89 circ in | 90 circ in | 91 circ in | 92 circ in | 93 circ in | 94 circ in | 95 circ in | 96 circ in | 97 circ in | 98 circ in | 99 circ in | 100 circ in |
board | 0.0654498 bd | 0.1308997 bd | 0.1963495 bd | 0.2617994 bd | 0.3272492 bd | 0.3926991 bd | 0.4581489 bd | 0.5235988 bd | 0.5890486 bd | 0.6544985 bd | 0.7199483 bd | 0.7853982 bd | 0.8508480 bd | 0.9162979 bd | 0.9817477 bd | 1.0471976 bd | 1.1126474 bd | 1.1780973 bd | 1.2435471 bd | 1.3089970 bd | 1.3744468 bd | 1.4398967 bd | 1.5053465 bd | 1.5707964 bd | 1.6362462 bd | 1.7016961 bd | 1.7671459 bd | 1.8325958 bd | 1.8980456 bd | 1.9634955 bd | 2.0289453 bd | 2.0943952 bd | 2.1598450 bd | 2.2252949 bd | 2.2907447 bd | 2.3561946 bd | 2.4216444 bd | 2.4870943 bd | 2.5525441 bd | 2.6179940 bd | 2.6834438 bd | 2.7488937 bd | 2.8143435 bd | 2.8797934 bd | 2.9452432 bd | 3.0106931 bd | 3.0761429 bd | 3.1415928 bd | 3.2070426 bd | 3.2724925 bd | 3.3379423 bd | 3.4033922 bd | 3.4688420 bd | 3.5342919 bd | 3.5997417 bd | 3.6651916 bd | 3.7306414 bd | 3.7960913 bd | 3.8615411 bd | 3.9269910 bd | 3.9924408 bd | 4.0578907 bd | 4.1233405 bd | 4.1887904 bd | 4.2542402 bd | 4.3196901 bd | 4.3851399 bd | 4.4505898 bd | 4.5160396 bd | 4.5814895 bd | 4.6469393 bd | 4.7123892 bd | 4.7778390 bd | 4.8432889 bd | 4.9087387 bd | 4.9741886 bd | 5.0396384 bd | 5.1050883 bd | 5.1705381 bd | 5.2359880 bd | 5.3014378 bd | 5.3668877 bd | 5.4323375 bd | 5.4977874 bd | 5.5632372 bd | 5.6286871 bd | 5.6941369 bd | 5.7595868 bd | 5.8250366 bd | 5.8904865 bd | 5.9559363 bd | 6.0213862 bd | 6.0868360 bd | 6.1522859 bd | 6.2177357 bd | 6.2831856 bd | 6.3486354 bd | 6.4140853 bd | 6.4795351 bd | 6.5449850 bd |
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 |
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 inches | boards |
---|---|
1 | = 0.0654498 |
15.2788739 | = 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 …) |