Electrical Calculators — Free Cost & Material Estimators
Quick electrical calculators for watts, amps, voltage conversions, and wiring projects. Useful for both DIY homeowners and professionals planning electrical work.
Watts to Amps Calculator
Convert watts to amps instantly. Get breaker size and wire gauge recommendations for any appliance or circuit.
Amps to Watts Calculator
Convert amps to watts instantly. Get wattage capacity and NEC 80% safe load for any circuit breaker or appliance.
Electrical Panel Upgrade Cost Calculator
Calculate electrical panel upgrade costs by type. Get estimates for 100A to 200A, new 200A, 200A to 400A, and subpanel installations.
EV Charger Installation Cost Calculator
Calculate EV charger installation costs by level and distance from panel. Get estimates for Level 1, Level 2 outlet, and hardwired chargers.
Generator Installation Cost Calculator
Calculate standby generator installation costs by size and fuel type. Get estimates for 7kW to 30kW+ generators with transfer switch options.
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Frequently Asked Questions
How much does electrical work cost for a home? +
Electricians charge $50-$100 per hour on average. Common projects range from $150-$500 for outlet/switch work, $1,000-$3,000 for panel upgrades, and $2,000-$6,000 for whole-house rewiring.
When should I hire an electrician vs DIY? +
Hire a licensed electrician for panel work, new circuits, and anything requiring permits. Simple tasks like replacing light fixtures or switches can be DIY if you're comfortable with electrical safety basics.