Compare calculators

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

Electrical Power Consumption Calculator

Estimate how much electricity a device consumes and what it costs per month. Enter the device wattage, daily usage hours, and your utility rate to get an instant cost breakdown.

Device Power (watts)

Hours per Day (hours)

Electricity Rate ($/kWh)

Fill in the required fields to see your result.

Electrical Home

Electrical Panel Upgrade Calculator

Find out what amperage panel you need after adding new circuits, EV chargers, or major appliances. Use it before calling an electrician so you arrive at the conversation with a concrete upgrade target.

Existing Load (amps)

New Load to Add (amps)

Future Load (EV, etc.) (amps)

Safety Factor

Fill in the required fields to see your result.

Key differences

	Electrical Power Consumption Calculator	Electrical Panel Upgrade Calculator
Category	Electrical Home	Electrical Home
Inputs required	3	4
Result	Monthly Cost ($)	Recommended Panel Size (amps)
What it does	Estimate how much electricity a device consumes and what it costs per month. Enter the device wattage, daily usage hours, and your utility rate to get an instant cost breakdown.	Find out what amperage panel you need after adding new circuits, EV chargers, or major appliances. Use it before calling an electrician so you arrive at the conversation with a concrete upgrade target.