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
Conduit Fill Calculator
Calculate the percentage of conduit fill for a given wire gauge, wire count, and conduit size to ensure NEC compliance. Use this before pulling wire to avoid overheating and code violations.
Fill in the required fields to see your result.
Key differences
| Wire Ampacity Calculator | Conduit Fill Calculator | |
|---|---|---|
| Category | Electrical | Electrical |
| Inputs required | 3 | 3 |
| Result | Wire Ampacity (A) | Conduit Fill Percentage (%) |
| 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. | Calculate the percentage of conduit fill for a given wire gauge, wire count, and conduit size to ensure NEC compliance. Use this before pulling wire to avoid overheating and code violations. |