How To Calculate Voltage Drop
Use the following formula as a guide for calculating voltage drop.
| Volts Drop = |
FACTOR x AMPS x FEET
100 |
Copper Conductor - 90% Power Factor |
| AWG |
1ø |
3ø |
| 14 |
.4762 |
.4167 |
| 12 |
.3125 |
.2632 |
| 10 |
.1961 |
.1677 |
| 8 |
.1250 |
.1087 |
| 6 |
.0833 |
.0714 |
| 4 |
.0538 |
.0463 |
| 3 |
.0431 |
.0379 |
| 2 |
.0323 |
.0278 |
| 1 |
.0323 |
.0278 |
| 0 |
.0269 |
.0231 |
| 00 |
.0222 |
.0196 |
| 000 |
.0190 |
.0163 |
| 0000 |
.0161 |
.0139 |
| 250 |
.0147 |
.0128 |
| 300 |
.0131 |
.0114 |
| 350 |
.0121 |
.0106 |
| 400 |
.0115 |
.0091 |
| 500 |
.0101 |
.0088 |