Compare calculators

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

Circuit Breaker Sizing Calculator

Determine the correct circuit breaker amperage for any electrical circuit using NEC load classification rules. Use it when designing new circuits or upgrading panels for continuous, non-continuous, and motor loads.

Continuous Load (amps)

Non-Continuous Load (amps)

Motor Load (if any) (amps)

Fill in the required fields to see your result.

Electrical Home

Electrical Outlet Circuit Calculator

Find out how many electrical outlets can safely share a single circuit, given the breaker size and any dedicated loads already on it. Use it when planning a room addition, workshop, or home office wiring layout.

Circuit Breaker Size

Outlet Type

Diversity Factor

Dedicated Loads on Circuit (amps)

Fill in the required fields to see your result.

Key differences

	Circuit Breaker Sizing Calculator	Electrical Outlet Circuit Calculator
Category	Electrical Home	Electrical Home
Inputs required	3	4
Result	Required Breaker Size (amps)	Maximum Outlets (outlets)
What it does	Determine the correct circuit breaker amperage for any electrical circuit using NEC load classification rules. Use it when designing new circuits or upgrading panels for continuous, non-continuous, and motor loads.	Find out how many electrical outlets can safely share a single circuit, given the breaker size and any dedicated loads already on it. Use it when planning a room addition, workshop, or home office wiring layout.