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

Electrical Panel Load Calculator

Estimate the total ampere demand on an electrical panel by applying NEC-style load factors to lighting, receptacle, appliance, and motor circuits, then check it against the panel's main breaker rating. Ideal for panel schedule design, load additions, and service upgrade evaluations.

Panel Main Breaker Rating

Lighting Circuit Load (W)

Receptacle Circuit Load (W)

Appliance Circuit Load (W)

Motor Circuit Load (W)

Panel Voltage

Fill in the required fields to see your result.

Electrical

Electrical Energy Cost Calculator

Estimate monthly electricity costs for any device or facility by entering power consumption, daily run time, and utility rates including demand charges. Ideal for energy audits, equipment budgeting, and utility bill forecasting.

Power Consumption (W)

Hours Per Day (hours)

Days Per Month (days)

Electricity Rate ($/kWh)

Demand Charge ($/kW)

Fill in the required fields to see your result.

Key differences

	Electrical Panel Load Calculator	Electrical Energy Cost Calculator
Category	Electrical	Electrical
Inputs required	6	5
Result	Calculated Panel Load (A)	Monthly Electricity Cost ($)
What it does	Estimate the total ampere demand on an electrical panel by applying NEC-style load factors to lighting, receptacle, appliance, and motor circuits, then check it against the panel's main breaker rating. Ideal for panel schedule design, load additions, and service upgrade evaluations.	Estimate monthly electricity costs for any device or facility by entering power consumption, daily run time, and utility rates including demand charges. Ideal for energy audits, equipment budgeting, and utility bill forecasting.