StubCalc Bend / Free calculators

Free conduit bending calculators

The five free bends from the StubCalc Bend app, in your browser. Every result gives the marks measured from the pipe end, which bender mark to line up, which way the hook faces and the bend order, for 1/2" to 1-1/4" EMT on a hand bender.

Pick a bend

Same math as the app: bender chart method by default, with trig and radius-aware numbers shown when they differ.

Get the app

Every bend type, your exact bender, saved jobs and a bend sheet to share. Works offline on the job. StubCalc Bend is in beta now.

Get the app: TestFlight / Play beta

Check marks against your bender; verify with local code. The calculator uses a generic EMT hand bender. Take-up and multipliers differ between makers, so compare with the numbers on your shoe. Not affiliated with NFPA or any bender maker.