We created this page to help you design and manufacture bent tube! Let us know what else you would like to see a calculator for!
You can use the calculator below to calculate the radius of an already existing shape (like a car roof or bumper). Measuring the radius of an existing large shape is tough without some help.
“Bump Bending” is when you make a series of small bends in a straight piece of tubing to approximate a rolled bend. Roll bending is the true way to make large sweeping bends in tubing. We show a roll bender in the “Bender Tech” article on this site. Start with the calculator above if you need to calculate the radius of an already existing shape (like a car roof or bumper). You can use the calculator below to figure out how many bends will go in your part and how many degrees to put on each bend!
You can likely apply these calulations and layouts to your JD2, ProTools, JMR, Baileigh, or another tubing/pipe bending machine. Just look for the “start of bend” number we provide. Add or subtract your bend offset for your tubing bender, and you’ll be ready to bend accurately on any machine. We’re your one-stop tube bending resource no matter what machine you’re using!
We will build our next FREE calculator for whatever gets the most votes. Just leave your comment and tell us what you want to see. Our 2 most common requests are shown below. We also get a lot of requests for the base 2-bend-U, just a part with (2) 90 degree bends. You can vote for anything, whether we have suggested it or not!