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

Electrical Panel Load Calculator

Estimate the minimum service amperage your home's electrical panel needs based on lighting, kitchen appliances, and HVAC loads. Use this before upgrading a panel or planning a new home build.

General Lighting & Outlets (watts)

Kitchen Appliances (watts)

HVAC Load (watts)

Fill in the required fields to see your result.

Key differences

	Appliance Energy Cost Calculator	Electrical Panel Load Calculator
Category	Electrical Home	Electrical Home
Inputs required	5	3
Result	Monthly Energy Cost ($)	Panel Capacity Needed (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.	Estimate the minimum service amperage your home's electrical panel needs based on lighting, kitchen appliances, and HVAC loads. Use this before upgrading a panel or planning a new home build.