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Buying Our Calculators

Registration Fee

Download and try our calculation software for up to thirty days. If you decide to keep it, please register it for $35 U.S. or $35 Canadian. The one time license fee covers all three calculators—Voltage Drop Calculator, Lighting Level Calculator and Underground Cable Ampacity Calculator.

Click on the PayPal button below to pay now. Once your payment is accepted, please allow us three to ten business days to email your license key. For larger orders please e-mail us and we will issue a PayPal invoice or discuss another secure method of payment.

$35 U.S.
$35 Canadian
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Sitewide and Company-wide Licenses

Sitewide License

Sitewide License covers all three calculators on all workstations at one company location.

$250 U.S.
$250 Canadian

Company-wide Multi-site License

This license covers all three calculators on all workstations at a company or corporation across its multiple locations.

$600 U.S.
$600 Canadian


Customer Reviews

"Underground Cable Ampacity is a handy application designed to enable you to find the allowable ampacity for underground cable configurations by looking at the tables and diagrams of the Canadian Electrical Code. Using this underground cable ampacity calculator you will be done in a minute. It will save you hours in a year, and most importantly it will reduce the chance of making an error." – Softpedia Review

"Electrical Calculator is a simple, useful and effective application worth having when you need to quickly calculate and estimate available short circuits. Specially intended for electrical engineers and contractors, Electrical Calculator enables you to perform various calculations and determine the values on both sides of the transformer. The application comes with a user-friendly interface and enables you to change the primary voltage and current as you prefer, then quickly view all the generated results." – Softpedia Review

"Electrical Calculator proves to be a useful and reliable application whose main purpose is to provide electrical engineers with the right tools when calculating the transformer primary and secondary current, protection and selecting downstream equipment interrupting capacity rating. "– Softpedia Review

"NEC Ampacity Calculator is an efficient piece of software ... dedicated to users that need to often look-up NEC tables and apply correction factors." – Softpedia Review