Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Electrical
Wire Ampacity Calculator
Find the safe current-carrying capacity of a copper or aluminum wire based on AWG size, ambient temperature, and number of bundled conductors. Essential for NEC-compliant circuit design.
Fill in the required fields to see your result.
Electrical
Wire Gauge Calculator
Determines the minimum copper wire gauge (AWG) needed to limit voltage drop in an electrical run. Ideal for electricians, solar installers, and DIYers sizing cables for long runs.
Fill in the required fields to see your result.
Key differences
| Wire Ampacity Calculator | Wire Gauge Calculator | |
|---|---|---|
| Category | Electrical | Electrical |
| Inputs required | 3 | 3 |
| Result | Wire Ampacity (A) | Required Wire Gauge (AWG) |
| What it does | Find the safe current-carrying capacity of a copper or aluminum wire based on AWG size, ambient temperature, and number of bundled conductors. Essential for NEC-compliant circuit design. | Determines the minimum copper wire gauge (AWG) needed to limit voltage drop in an electrical run. Ideal for electricians, solar installers, and DIYers sizing cables for long runs. |