Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Electrical Home
Wire Size Calculator
Find the correct wire gauge for any electrical circuit based on current load, run length, and allowable voltage drop. Use this when wiring outlets, appliances, or sub-panels to avoid overheating and energy loss.
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
| Wire Size Calculator | Wire Gauge Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 4 | 3 |
| Result | Minimum Wire Size (AWG) | Recommended Wire Gauge (AWG) |
| What it does | Find the correct wire gauge for any electrical circuit based on current load, run length, and allowable voltage drop. Use this when wiring outlets, appliances, or sub-panels to avoid overheating and energy loss. | 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. |