| AWG Wire Chart | R.Quick's AWG Wire Chart (for manual use) | ||||||||
| Wire f | AWG | Wire f | |||||||
| mm | SIZE | mm | AWG | WIRE DIAM | WIRE DIAM | D.C. OHMS | APPROX. TURNS PER | FEET PER | |
| calc.[1] | SIZE | MM | INCHES | PER 1000 FT | INCH, SOLID ENAMEL | POUND | |||
| 0,0356 | 47 | 0,0355 | COVERED | ||||||
| 0,0399 | 46 | 0,0399 | 1 | 7,34822 | 0,2893 | 0,1264 | X | 3,947 | |
| 0,0447 | 45 | 0,0448 | 2 | 6,54304 | 0,2576 | 0,1593 | X | 4,977 | |
| 0,0508 | 44 | 0,0503 | 3 | 5,82676 | 0,2294 | 0,2009 | X | 6,276 | |
| 0,0559 | 43 | 0,0565 | 4 | 5,18922 | 0,2043 | 0,2533 | X | 7,914 | |
| 0,0635 | 42 | 0,0634 | 5 | 4,62026 | 0,1819 | 0,3195 | X | 9,98 | |
| 0,0711 | 41 | 0,0712 | 6 | 4,1148 | 0,162 | 0,4028 | X | 12,58 | |
| 0,0787 | 40 | 0,0800 | 7 | 3,66522 | 0,1443 | 0,508 | X | 15,87 | |
| 0,0914 | 39 | 0,0898 | 8 | 3,26644 | 0,1286 | 0,6405 | 7,6 | 20,01 | |
| 0,102 | 38 | 0,1008 | 9 | 2,90576 | 0,1144 | 0,8077 | 8,6 | 25,23 | |
| 0,114 | 37 | 0,1132 | 10 | 2,58826 | 0,1019 | 1,018 | 9,6 | 31,82 | |
| 0,127 | 36 | 0,1271 | 11 | 2,30378 | 0,0907 | 1,284 | 10,7 | 40,12 | |
| 0,142 | 35 | 0,1427 | 12 | 2,05232 | 0,0808 | 1,619 | 12 | 50,59 | |
| 0,160 | 34 | 0,1603 | 13 | 1,8288 | 0,072 | 2,042 | 13,5 | 63,8 | |
| 0,180 | 33 | 0,1800 | 14 | 1,62814 | 0,0641 | 2,524 | 15 | 80,44 | |
| 0,203 | 32 | 0,2021 | 15 | 1,45034 | 0,0571 | 3,181 | 16,8 | 101,4 | |
| 0,226 | 31 | 0,2269 | 16 | 1,29032 | 0,0508 | 4,018 | 18,9 | 127,9 | |
| 0,254 | 30 | 0,2548 | 17 | 1,15062 | 0,0453 | 5,054 | 21,2 | 161,3 | |
| 0,287 | 29 | 0,2861 | 18 | 1,02362 | 0,0403 | 6,386 | 23,6 | 203,4 | |
| 0,320 | 28 | 0,3213 | 19 | 0,91186 | 0,0359 | 8,046 | 26,4 | 256,5 | |
| 0,361 | 27 | 0,3607 | 20 | 0,8128 | 0,032 | 10,13 | 29,4 | 323,4 | |
| 0,404 | 26 | 0,4051 | 21 | 0,7239 | 0,0285 | 12,77 | 33,1 | 407,8 | |
| 0,455 | 25 | 0,4548 | 22 | 0,64262 | 0,0253 | 16,2 | 37 | 514,2 | |
| 0,511 | 24 | 0,5107 | 23 | 0,57404 | 0,0226 | 20,3 | 41,3 | 648,4 | |
| 0,574 | 23 | 0,5735 | 24 | 0,51054 | 0,0201 | 25,67 | 46,3 | 817,7 | |
| 0,643 | 22 | 0,6440 | 25 | 0,45466 | 0,0179 | 32,37 | 51,7 | 1031 | |
| 0,724 | 21 | 0,7231 | 26 | 0,40386 | 0,0159 | 41,02 | 58 | 1300 | |
| 0,813 | 20 | 0,8119 | 27 | 0,36068 | 0,0142 | 51,44 | 64,9 | 1639 | |
| 0,912 | 19 | 0,9117 | 28 | 0,32004 | 0,0126 | 65,31 | 72,7 | 2067 | |
| 1,024 | 18 | 1,0238 | 29 | 0,28702 | 0,0113 | 81,21 | 81,6 | 2607 | |
| 1,151 | 17 | 1,1496 | 30 | 0,254 | 0,01 | 103,7 | 90,5 | 3287 | |
| 1,290 | 16 | 1,2908 | 31 | 0,22606 | 0,0089 | 130,9 | 101 | 4145 | |
| 1,450 | 15 | 1,4494 | 32 | 0,2032 | 0,008 | 162 | 113 | 5227 | |
| 1,628 | 14 | 1,6276 | 33 | 0,18034 | 0,0071 | 205,7 | 127 | 6591 | |
| 1,829 | 13 | 1,8276 | 34 | 0,16002 | 0,0063 | 261,3 | 143 | 8310 | |
| 2,052 | 12 | 2,0521 | 35 | 0,14224 | 0,0056 | 330,7 | 158 | 10480 | |
| 2,304 | 11 | 2,3043 | 36 | 0,127 | 0,005 | 414,8 | 175 | 13210 | |
| 2,588 | 10 | 2,5875 | 37 | 0,1143 | 0,0045 | 512,1 | 198 | 16660 | |
| 2,906 | 9 | 2,9054 | 38 | 0,1016 | 0,004 | 648,2 | 224 | 21010 | |
| 3,266 | 8 | 3,2625 | 39 | 0,09144 | 0,0036 | 846,6 | 248 | 26500 | |
| 3,665 | 7 | 3,6634 | 40 | 0,07874 | 0,0031 | 1079 | 282 | 33410 | |
| 4,115 | 6 | 4,1135 | 41 | 0,07112 | 0,0028 | 1323 | |||
| 4,620 | 5 | 4,6190 | 42 | 0,0635 | 0,0025 | 1659 | |||
| 5,189 | 4 | 5,1866 | 43 | 0,05588 | 0,0022 | 2143 | |||
| 5,827 | 3 | 5,8240 | 44 | 0,0508 | 0,002 | 2593 | |||
| 6,543 | 2 | 6,5396 | 45 | 0,044704 | 0,00176 | 3348 | |||
| 7,348 | 1 | 7,3432 | 46 | 0,039878 | 0,00157 | 4207 | |||
| 47 | 0,03556 | 0,0014 | 5291 | ||||||
| For winding Tesla secondary coils the general consensus is to use | |||||||||
| number 22 AWG, or larger diameter, double Formvar Magnet wire. Often | |||||||||
| surplus partial spools of odd wire sizes are found, so I took time to | |||||||||
| post a more complete chart of AWG numbers and fractional diameters | |||||||||
| than is usually available. All information above is approximate | |||||||||
| despite the decimal places. Wire diameter, turns per inch, resistance, | |||||||||
| feet per pound, etc. all vary slightly from one manufacturer to another. | |||||||||
| Insulation thicknesses will vary depending upon type and the supplier. | |||||||||
| Turns per inch will also vary with the quality of the winding. In | |||||||||
| practice, Tesla coil windings are not perfect (nor do they need to be) | |||||||||
| so expect some slight variations from the specification table above. | |||||||||
| Richard Quick | |||||||||
| From richard.quick@slug.orgSat Sep 2 13:01:29 1995 | |||||||||
| Date: Mon, 28 Aug 1995 22:24:22 -0600 | |||||||||
| From: Richard Quick <richard.quick@slug.org> | |||||||||
| Reply to: usa-tesla@usa.net | |||||||||
| To: billb@eskimo.com | |||||||||
| Subject: AWG Wire Chart | |||||||||