About Bendmark

Bendmark is a conduit bending calculator for electricians. Pick a trade angle, punch in your rise, and it hands back the mark spacing and, just as important, the shrink you need to add back before you cut. One screen, no login, free to use.

What it does

It works out the two things a bend actually needs: where to put your marks, and how much length the bend steals so your run still lands where it should. It covers offset bends and 3-point saddles across the five trade angles you already bend to, with an editable take-up so the numbers match your bender and conduit size.

Most field charts hand you the mark-spacing multipliers and then leave the shrink figure off entirely. That is the number that lands a run short and sends you back for a fresh stick. Bendmark puts shrink front and center so you add it back every time. Offset marks and saddle marks live on one screen, so you are not flipping between tools mid-bend. No sign-up, nothing to buy.

Your numbers stay on your phone

Every calculation runs in your browser. Type a rise, get a mark, and the math never leaves your device. There is no server doing the arithmetic, so there is nothing to send anywhere and nothing for us to store.

There are no accounts and no data collection without your say-so. We do not ask who you are or what job you are on. If you want to help us see which features get used, you can turn on optional usage analytics from the privacy choices in the footer, and it stays off until you grant that consent. Leave it off and Bendmark still works exactly the same.

Need a hand

Hit a number that looks off, want an angle we do not cover yet, or just have a question? Reach out and a real person reads it.