Welcome to Old AJ's Electrical Software

Save Time! Save Money! Eliminate costly mistakes!
Let our electrical software search the NEC® and do the math for you. All electrical calculations are derived from NEC® 2008. Compare to software costing much more!

Old AJ's can more than pay for itself the first time you use it!
Check out our brand new update to version 1.3.0! With our electrical software, you can now size for up to 4 parallel runs! Other features have also been added. Our electrical calculators find: Feeder size, Wire size, Conduit size, Voltage drop, Motor amps, and many other electrical calculations! See our Online Demos above...

Old AJ's now has a 30-day, fully functioning Free Trial available.

Electrical Calculations Software per NEC® for all in the electrical field

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Electrical Calculations for Contractors, Designers, Educators & Electricians

Old AJ's Electrical Software will perform your electrical installation calculations in accordance with NEC® 2008. The software can be used for electrical installations as well as other electrical/electronic calculations. Save time, money & mistakes. It can also be used for educational purposes in regard to the electrical field.

Electricians Calculator Software

Electricians, from apprentice to master, can benefit from this software. Check your electrical calculations, or check Old AJs results against the NEC® 2008. 3 years, just like the NEC®, of free updates are included. Order the CD now!, or download the program Here. Your electrical calculations will simplified greatly, and you can rely on the accuracy of our results!

Click program titles below to see sample screenshots from Old AJ's Electrical Software...

Electrical Feeder &
Service Calculator

Enter total amps & program finds wire sizes & dimensions from NEC® tables, sizes conduit for single & when justified, parallel runs.

3Ø Motor Feeder
Calculator

Enter Motor HP or FLC & program finds total Amps for up to 12 motors. Also sizes wire and conduit for single & when justified, parallel runs.

Electrical
Conduit Size

Enter single or multiple conductor, size & insulation combos. Program sizes electrical conduit for single & parallel runs.

Voltage Drop Calculator

Enter wire size, amps & circuit length. Program finds voltage drop.

Ground Wire
Calculation

Enter largest ungrounded conductor. Program finds minimum copper grounding conductor.

Electrical
Wire Size

Enter current & insulation. Program finds minimum wire size.

Find Motor Amps

Enter HP & voltage, 1Ø or 3Ø. Program finds FLC from NEC® Tables

AC Electrical Calculations

A practical version of Ohm's Law for electricians. Enter 2 values: volts, amps, kva, kw, pf & program calculates unknown values.

Ohm's Law Calculator

Enter 2 values. Program finds unknown: power, current, voltage, resistance.

Handy Conversions

Enter choice of values. Program finds English & Metric equivalents. Lots of categories.

Values in Old AJ's programs comply with NEC® 2008 codes & regulations. Local codes and/or company standards may be different.

National Electrical Code® and NEC® are registered trademarks of the National Fire Protection Association, Inc., Quincy, MA 02169.

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