Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Electrical Home
Electrical Load Calculator
Add up the total electrical load across lighting, outlets, and appliances in a home circuit or panel. Use it when sizing service panels, planning additions, or auditing existing electrical capacity.
Fill in the required fields to see your result.
Electrical Home
Electric Heat Load Calculator
Estimate the electric heating power (in watts) needed to keep a room comfortable in winter. Use it when sizing a space heater, baseboard heater, or radiant panel for any room.
Fill in the required fields to see your result.
Key differences
| Electrical Load Calculator | Electric Heat Load Calculator | |
|---|---|---|
| Category | Electrical Home | Electrical Home |
| Inputs required | 3 | 5 |
| Result | Total Electrical Load (watts) | Heating Load Required (watts) |
| What it does | Add up the total electrical load across lighting, outlets, and appliances in a home circuit or panel. Use it when sizing service panels, planning additions, or auditing existing electrical capacity. | Estimate the electric heating power (in watts) needed to keep a room comfortable in winter. Use it when sizing a space heater, baseboard heater, or radiant panel for any room. |