| (Town of Providence, Rhode Isl. & Providence Plantations) (Brown & Sharpe Wire Gage) AWG (Year of 1853) |
| NNN,NNN AWG | = | 1.149 inch diameter | (6/N AWG) | (1,321,123 circular mil) |
| NN,NNN AWG | = | 1.024 in.dia. | (5/N AWG) | (1,048,576 cir. mil) |
| NNNN AWG | = | 0.9123 in.dia. | (4/N AWG) | (832,255 cir. mil) |
| NNN AWG | = | 0.8127 in.dia. | (3/N AWG) | (660,562 cir. mil) |
| NN AWG | = | 0.7241 in.dia. | (2/N AWG) | (524,288 cir. mil) |
| N AWG | = | 0.6451 in.dia. | (1/N AWG) | (416,128 cir. mil) |
| 000,000 AWG | = | 0.5747 in.dia. | (6/0 AWG) | (330,281 cir. mil) |
| 00,000 AWG | = | 0.5120 in.dia. | (5/0 AWG) | (262,144 cir. mil) |
| 0000 AWG | = | 0.4561 in.dia. | (4/0 AWG) | (208,064 cir. mil) |
| 000 AWG | = | 0.4064 in.dia. | (3/0 AWG) | (165,140 cir. mil) |
| 00 AWG | = | 0.3620 in.dia. | (2/0 AWG) | (131,072 cir. mil) |
| 0 AWG | = | 0.3225 in.dia. | (1/0 AWG) | (104,032 cir. mil) |
| 1 AWG | = | 0.2874 in.dia. | (82570.2 cir. mil) |
| 2 AWG | = | 0.2560 in.dia. | (65536.0 cir. mil) |
| 3 AWG | = | 0.2281 in.dia. | (52016.0 cir. mil) |
| 4 AWG | = | 0.2032 in.dia. | (41285.1 cir. mil) |
| 5 AWG | = | 0.1810 in.dia. | (32768.0 cir. mil) |
| 6 AWG | = | 0.1613 in.dia. | (26008.0 cir. mil) |
| 7 AWG | = | 0.1437 in.dia. | (20642.5 cir. mil) |
| 8 AWG | = | 0.1280 in.dia. | (16384.0 cir. mil) |
| 9 AWG | = | 0.1140 in.dia. | (13004.0 cir. mil) |
| 10 AWG | = | 0.1016 in.dia. | (10321.3 cir. mil) |
| 11 AWG | = | 0.09051 in.dia. | (8192.00 cir. mil) |
| 12 AWG | = | 0.08063 in.dia. | (6502.00 cir. mil) |
| 13 AWG | = | 0.07184 in.dia. | (5160.64 cir. mil) |
| 14 AWG | = | 0.06400 in.dia. | (4096.00 cir. mil) |
| 15 AWG | = | 0.05702 in.dia. | (3251.00 cir. mil) |
| 16 AWG | = | 0.05080 in.dia. | (2580.32 cir. mil) |
| 17 AWG | = | 0.04525 in.dia. | (2048.00 cir. mil) |
| 18 AWG | = | 0.04032 in.dia. | (1625.50 cir. mil) |
| 19 AWG | = | 0.03592 in.dia. | (1290.16 cir. mil) |
| 20 AWG | = | 0.03200 in.dia. | (1024.00 cir. mil) |
| 21 AWG | = | 0.02851 in.dia. | (812.749 cir. mil) |
| 22 AWG | = | 0.02540 in.dia. | (645.080 cir. mil) |
| 23 AWG | = | 0.02263 in.dia. | (512.000 cir. mil) |
| 24 AWG | = | 0.02016 in.dia. | (406.375 cir. mil) |
| 25 AWG | = | 0.01796 in.dia. | (322.540 cir. mil) |
| 26 AWG | = | 0.01600 in.dia. | (256.000 cir. mil) |
| 27 AWG | = | 0.01425 in.dia. | (203.187 cir. mil) |
| 28 AWG | = | 0.01270 in.dia. | (161.270 cir. mil) |
| 29 AWG | = | 0.01131 in.dia. | (128.000 cir. mil) |
| 30 AWG | = | 0.01008 in.dia. | (101.594 cir. mil) |
| 31 AWG | = | 0.008980 in.dia. | (80.6350 cir. mil) |
| 32 AWG | = | 0.008000 in.dia. | (64.0000 cir. mil) |
| 33 AWG | = | 0.007127 in.dia. | (50.7968 cir. mil) |
| 34 AWG | = | 0.006350 in.dia. | (40.3175 cir. mil) |
| 35 AWG | = | 0.005657 in.dia. | (32.0000 cir. mil) |
| 36 AWG | = | 0.005040 in.dia. | (25.3984 cir. mil) |
| 37 AWG | = | 0.004490 in.dia. | (20.1587 cir. mil) |
| 38 AWG | = | 0.004000 in.dia. | (16.0000 cir. mil) |
| 39 AWG | = | 0.003564 in.dia. | (12.6992 cir. mil) |
| 40 AWG | = | 0.003175 in.dia. | (10.0794 cir. mil) |
| 41 AWG | = | 0.002828 in.dia. | (8.00000 cir. mil) |
| 42 AWG | = | 0.002520 in.dia. | (6.34960 cir. mil) |
| 43 AWG | = | 0.002245 in.dia. | (5.03968 cir. mil) |
| 44 AWG | = | 0.002000 in.dia. | (4.00000 cir. mil) |
| 45 AWG | = | 0.001782 in.dia. | (3.17480 cir. mil) |
| 46 AWG | = | 0.001587 in.dia. | (2.51984 cir. mil) |
| 47 AWG | = | 0.001414 in.dia. | (2.00000 cir. mil) |
| 48 AWG | = | 0.001260 in.dia. | (1.58740 cir. mil) |
| 49 AWG | = | 0.001122 in.dia. | (1.25992 cir. mil) |
| 50 AWG | = | 0.001000 in.dia. | (1.00000 cir. mil) |
| 51 AWG | = | 0.0008909 in.dia. | (0.793701 cir. mil) |
| 52 AWG | = | 0.0007937 in.dia. | (0.629961 cir. mil) |
| 53 AWG | = | 0.0007071 in.dia. | (0.500000 cir. mil) |
| 54 AWG | = | 0.0006300 in.dia. | (0.396850 cir. mil) |
| 55 AWG | = | 0.0005612 in.dia. | (0.314980 cir. mil) |
| 56 AWG | = | 0.0005000 in.dia. | (0.250000 cir. mil) |
| 57 AWG | = | 0.0004454 in.dia. | (0.198425 cir. mil) |
| 58 AWG | = | 0.0003969 in.dia. | (0.157490 cir. mil) |
| 59 AWG | = | 0.0003536 in.dia. | (0.125000 cir. mil) |
| 60 AWG | = | 0.0003150 in.dia. | (0.0992126 cir. mil) |
| 1 ft. of 5/0 AWG | = | weight of 262,144 ft. of 50 AWG |
| 1 ft. of 5 AWG | = | weight of 32,768 ft. of 50 AWG |
| 1 ft. of 14 AWG | = | weight of 4096 ft. of 50 AWG |
| 1 ft. of 23 AWG | = | weight of 512 ft. of 50 AWG |
| 1 ft. of 32 AWG | = | weight of 64 ft. of 50 AWG |
| 1 ft. of 41 AWG | = | weight of 8 ft. of 50 AWG |
| 1 ft. of 59 AWG | = | weight of 1/8 ft. of 50 AWG |
| AWG | (BSWG) | = | American Wire Gage | or Brown & Sharpe Wire Gage |
| PWG | = | Providence Wire Gage | ||
| SWG | (IWG) | = | Standard Wire Gage | or Improved or Imperial Wire Gage |
| BWG | (SIWG) | = | Birmingham Wire Gage | or Stub's Iron Wire Gage |
| BSGWG | = | Birmingham Silver & Gold Wire Gage | ||
| SSWG | = | Stub's Steel Wire Gage | ||
| WMSWG | (USSWG) | = | Washburn & Moen Steel Wire Gage | or United States Steel Wire Gage |
| 1 circular mil | = | 0.000000785398175 sq.in. | (Brown & Sharpe Mfg. Co. Yr.1853) |
| 1 cir. mil | = | (0.001" ÷ 2) x (0.001" ÷ 2) x 3.1415927 | (π = 3.1415927) |
| 1 cir. mil | = | unit of area for measuring cross-section of wire/rod/tube |
| LEATHER SEALER'S OFFICE, Londonderry, Vt. | April 8th 1826 | Rory Ely Cole |
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