Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Electrical Home
Conduit Fill Calculator
Determine how many wires of a given AWG gauge fit safely inside an electrical conduit. Essential for electricians planning conduit runs to meet NEC fill-percentage requirements.
Fill in the required fields to see your result.
Electrical Home
Wire Gauge Calculator
Find the minimum safe AWG wire gauge for an electrical circuit based on current load, wire run length, and system voltage. Use this when wiring new circuits, extending runs, or verifying existing installations.
Fill in the required fields to see your result.
Key differences
| Conduit Fill Calculator | Wire Gauge Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 2 | 3 |
| Result | Maximum Wires (wires) | Recommended Wire Gauge (AWG) |
| What it does | Determine how many wires of a given AWG gauge fit safely inside an electrical conduit. Essential for electricians planning conduit runs to meet NEC fill-percentage requirements. | Find the minimum safe AWG wire gauge for an electrical circuit based on current load, wire run length, and system voltage. Use this when wiring new circuits, extending runs, or verifying existing installations. |