Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Electrical
Battery Runtime Calculator
Estimate how many hours a battery will power a device based on its capacity, discharge depth, and system efficiency. Ideal for sizing backup power, solar storage, and portable electronics.
Fill in the required fields to see your result.
Electrical
Electrical Load Calculator
Determine the total electrical demand of a building and the minimum service panel size needed to support it safely. Used by electricians and contractors during new construction or renovation planning.
Fill in the required fields to see your result.
Key differences
| Battery Runtime Calculator | Electrical Load Calculator | |
|---|---|---|
| Category | Electrical | Electrical |
| Inputs required | 4 | 4 |
| Result | Runtime (hours) | Required Service Size (kW) |
| What it does | Estimate how many hours a battery will power a device based on its capacity, discharge depth, and system efficiency. Ideal for sizing backup power, solar storage, and portable electronics. | Determine the total electrical demand of a building and the minimum service panel size needed to support it safely. Used by electricians and contractors during new construction or renovation planning. |