Detached Garage EV Charger Cost Calculator
Trench, wire and subpanel costs.
All Electrical & Power calculators
EV Charger Circuit Size Calculator
Breaker and wire for a charger.
EV Charger Installation Cost Calculator
Estimate a home charger install.
Generator Runtime Calculator
How long a tank will last.
Whole House Generator Size Calculator
Size a standby generator in kW.
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Planning electrical work before you call an electrician
EV chargers and standby generators are two of the most common reasons homeowners add large electrical loads. These calculators show the circuit sizes, loads and cost components involved so you can compare quotes and ask better questions.
Results are planning estimates. Final sizing and installation must follow the codes adopted where you live and be confirmed by a licensed professional.
Frequently asked questions
Can I use these results for a permit?
No. They are planning estimates. Permits require a design by, or reviewed by, a licensed electrician following the electrical code adopted locally.
Will I need a panel upgrade?
Not necessarily. Based on the entered information, a load review or panel upgrade may be required; a licensed electrician determines it from a load calculation.
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