Conduit bending app — marks for your bender.
Arrowmark works out the marks for any conduit bend — offsets, saddles, 90s, kicks, compound and segmented — for the bender in your hand. Then it shows which mark goes where, which bend comes first, and why the number is what it is.
Pay once · $6.99 · No subscription · Works offline · English & Español
Say it. Don't type it.
Voice input, gloves on
Tap Speak and say “rise 6 at 30”, “stub 2 feet 6” or “roll 8, rise 6, 45 degrees”. Arrowmark fills in every box it heard and shows the numbers to check before you bend. Fractions like “five eighths” work, in English or Spanish.
Everything a bending table can't do
Marks for your bender
Pick the bender and shoe you own. Arrowmark uses its real centerline radius and deduct, not a generic table — Greenlee, Klein, Ideal, Gardner, Milwaukee, Southwire, Current Tools, or your own.
17 bends, tape-ready
Offsets (rolling, parallel, matching), 3- and 4-point saddles, 90s, kicks, compound 90s around round, square and rectangular obstructions, and segmented 90s — to the 1/16", feet-inches, or centimeters.
A guide under every result
Which mark goes on the arrow, which bend comes first, which way to roll the pipe — written for the bend you just calculated, with your numbers in it.
Impossible bend? It tells you
A stub shorter than the deduct or an offset that can't fit turns red before you walk to the bender with a bad mark.
Lay out a whole stick
Chain an offset, a saddle and a 90 on one length of conduit; the shrink of each bend carries into the next mark.
Built for the jobsite
Big numbers you can read from the floor, fraction keys on the number pad, a dark mode for ceiling work, English and Spanish, iPhone, iPad and Android. No account, no ads, no signal needed.
Screens
Free tools
Conduit offset calculator
Rise and angle in, distance between bends and shrink out — to the 1/16".
Offset multiplier & shrink chart
Multipliers and shrink per inch for 5° to 60°, and why printed charts disagree.
Questions
Does Arrowmark work without signal?
Yes. Every calculation runs on the phone, so Arrowmark works in a basement or a new build with no signal. There is no account and no sign-in. Voice input uses the phone's own speech recognition, which works offline on phones that have it installed.
Is there a subscription?
No. Arrowmark is a one-time purchase (US $6.99 on the App Store and Google Play). No subscription, no ads, no in-app purchases.
Why are Arrowmark's numbers different from a multiplier chart?
A multiplier chart ignores the bender. Arrowmark uses the centerline radius and deduct of the shoe you pick, so the marks match the bend that bender actually makes. For a 30° offset with an 8" rise the chart says 16" between bends; with a Klein ¾" EMT hand bender Arrowmark gives 15 15/16", and it explains the difference on screen.
Can I enter numbers by voice?
Yes. Tap Speak on any bend and say something like "rise 6 at 30" or "stub 2 feet 6". Arrowmark fills in every box it heard and shows them for you to check. Feet, inches and fractions work, in English or Spanish.
Which benders are included?
Hand, mechanical and hydraulic benders from Greenlee, Klein, Ideal, Gardner Bender, Milwaukee, Southwire and Current Tools, with the source of each number noted. You can add your own shoe, or use the multiplier method with no bender selected.