CALCULATE

Load Calculations in Minutes

The Load Calculator automates NEC Article 220 load calculations for residential and commercial projects. Enter your property details and appliance loads. Get demand factors, total load, and panel capacity answers without the manual math.

Run A Load Calculation
Breakerbox Load Calculator interface

What the Load Calculator Does

Everything you need to run a proper load calc, built into one tool that follows the national code.

Demand Factors

Enter your loads and the calculator applies the right NEC demand factors for you.

A Few Minutes, Not More

A load calc that used to take 10-20 minutes by hand now takes a few minutes max.

Residential & Commercial

Handles both residential and commercial projects. One tool covers every job.

Panel Capacity Output

See right away whether the existing panel can handle the load or if you need an upgrade.

Customer testimonial coming soon. We are collecting feedback from early users of the Load Calculator.

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Coming Soon Early user feedback
ON THE JOB

Panel Upgrade on a Service Call

You are at a customer's house and they want to add a EV charger. Open the Load Calculator on your phone, punch in the existing loads and the new ones, and know in minutes whether their current panel can handle it or needs an upgrade. Give the customer a straight answer before you leave the driveway.

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REPLACES

Ditch the Spreadsheets and 2000s Software

No more juggling Excel templates or paying for clunky desktop programs that only run on one computer. The Load Calculator works where ever you do. It is always up to date, and you can use it from any device.

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Try the Load Calculator

Free for 14 days. No credit card required. No long contracts. No hidden fees.

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