Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Appliance Energy Cost Calculator

Calculate exactly how much an appliance costs to run per month and per year based on its wattage, usage schedule, and your local electricity rate. Ideal for comparing appliances or spotting energy hogs.

Appliance Wattage (watts)

Hours Used Per Day (hours)

Days Used Per Month (days)

Electricity Rate ($/kWh)

Appliance Efficiency

Fill in the required fields to see your result.

Electrical Home

Circuit Breaker Size Calculator

Determine the correctly rated circuit breaker amperage for any electrical circuit based on total wattage and voltage. Essential for panel upgrades, new circuit installations, and NEC code compliance.

Total Load (watts)

Circuit Voltage (volts)

Fill in the required fields to see your result.

Key differences

	Appliance Energy Cost Calculator	Circuit Breaker Size Calculator
Category	Electrical Home	Electrical Home
Inputs required	5	2
Result	Monthly Energy Cost ($)	Circuit Breaker Size (amps)
What it does	Calculate exactly how much an appliance costs to run per month and per year based on its wattage, usage schedule, and your local electricity rate. Ideal for comparing appliances or spotting energy hogs.	Determine the correctly rated circuit breaker amperage for any electrical circuit based on total wattage and voltage. Essential for panel upgrades, new circuit installations, and NEC code compliance.