About BuildWire Calc

Last updated 2026-10-26

BuildWire Calc is a phone and tablet app with 36 offline calculators for electricians, builders and HVAC technicians, for iPhone, iPad and Android. This website is the app’s home: it explains what the app does, what it costs and how to get help.

How it works

• Everything runs on your device. The app works offline and sends nothing anywhere. See the privacy policy.
• Results show their working. Each calculator displays its calculation steps and warnings so you can check the numbers.
• Tested code. The calculation engine has automated tests against independently worked examples.
• Estimates, not advice. The calculators support planning; they do not replace local code. See the terms.

If a calculator gives a wrong result, tell us through the support page.

Who runs it

BuildWire Calc and this website are owned and operated by SKYSEED TECH LLC. You can write to us at support@buildwirecalc.com.

Get the app