Construction Monkey

Electrical Motor Calculation

Prove Project Impacts Easily

Electrical Motor Calculator

The Construction Monkey Motor calculator lets you figure out electrical characteristics of your system given a specific motor. By inputting horsepower, motor efficiency, power factor, and system voltage the system will calculate the disconnect size, feeder size, and starter size.

Make your selections below and the form will automatically update the values.

Enter Motor Information



Enter information and click on the "Calculate" button to get the results.

Motor Circuit


Prove Project Impacts Easily

Not only know the moment a condition is impacting your crews, know the cost to your project in a couple clicks. Construction Monkey makes it easy to monitor your greatest risk and get paid for conditions beyond your control or scope.

No guarantees are made as to the accuracy of the calculation or compliance with local codes.  Verify all calculations with a professional engineer. If you find an error, or have a suggestion, please send us an email.