Conduit Calculator

Free conduit bending and fill calculator for electricians: offsets, 3- and 4-point saddles, 90° stubs, back-to-back 90s and conduit fill, with a picture for every bend. No sign-up. Works offline once it's on your phone.

Open the calculator full screen →

Get it on your phone

Scan with your phone camera, then install:

QR code: opens the Conduit Calculator on your phone with install steps (thejobjacket.com/calc/?install=1)
  1. Android (Chrome): tap ⋮ → Install app.
  2. iPhone (Safari): tap Share → Add to Home Screen.

Share with a coworker

They scan this to open the free calculator.

QR code: opens the Conduit Calculator (thejobjacket.com/calc/)

Install on this computer

Works in Chrome or Edge on Windows, Mac and Chromebook. It opens the calculator - then click Install.

Install on this computer

Not on Google Play or the Apple App Store

The Conduit Calculator is not listed on Google Play or the Apple App Store. It is a free web app that you install straight from this website. It does the same job, keeps working offline, and updates itself.

Why: the stores charge developers to list apps.

  • Apple App Store: the Apple Developer Program costs US$99 every year (Apple: enrollment).
  • Google Play: a US$25 one-time registration fee, plus ID checks and a testing period before new personal accounts can publish (Google Play Console Help).

Keeping the calculator free on our own site keeps it free for you. If enough people use it, we will look at the stores.

Check it's safe before you install

There is no file to download: the app is the web page at thejobjacket.com/calc/, saved to your home screen by your phone's own browser. You can check our address with free, trusted scanners:

  • VirusTotal (owned by Google) - paste https://thejobjacket.com/calc/ and press scan; it checks the address with 70+ security vendors.
  • Google Safe Browsing site status - shows whether Google has flagged the site.

The Job Jacket News App is coming soon - thejobjacket.com/app.