Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Electrical Home
Electrical Panel Upgrade Calculator
Find out what amperage panel you need after adding new circuits, EV chargers, or major appliances. Use it before calling an electrician so you arrive at the conversation with a concrete upgrade target.
Fill in the required fields to see your result.
Electrical Home
Electrical Panel Capacity Calculator
Determine whether your electrical panel has enough remaining capacity before adding new circuits or appliances. Critical for home additions, EV chargers, or workshop upgrades.
Fill in the required fields to see your result.
Key differences
| Electrical Panel Upgrade Calculator | Electrical Panel Capacity Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 4 | 5 |
| Result | Recommended Panel Size (amps) | Remaining Panel Capacity (A) |
| What it does | Find out what amperage panel you need after adding new circuits, EV chargers, or major appliances. Use it before calling an electrician so you arrive at the conversation with a concrete upgrade target. | Determine whether your electrical panel has enough remaining capacity before adding new circuits or appliances. Critical for home additions, EV chargers, or workshop upgrades. |