Conduit Bending Calculator

A bending calculator for electricians and pipe benders. Type the rise or the stub height and read the marks to put on the conduit: offsets, 90s, kicks, saddles and segmented bends, worked with exact trigonometry instead of memorized shortcuts.

Made for apprentices, journeymen, electrical contractors and anyone who bends EMT, IMC, rigid or PVC conduit by hand.

WHAT YOU CAN DO
• 90 degree stub-up: mark distance and gain from stub height, deduct and centerline radius
• Offsets at 10, 22.5, 30, 45 and 60 degrees: distance between bends and shrink
• Rolling offset from the vertical and horizontal travel, with the true offset and roll angle
• Marks measured from the pipe end, with the first or the second bend as the critical one
• Kicks, and a kick combined with a 90
• 3-point and 4-point saddles
• Segmented 90 bends: angle and spacing for any number of segments
• Matching marks for a second, parallel conduit
• Bend level: the phone's motion sensor reads the angle on the pipe, with springback
• Bend reference table: multiplier and shrink for any angle
• Bender profiles: save the take-up and radius of the tools you use and pick one in the calculators
• Electrical: voltage drop, box fill, conduit fill and ampacity, from published NEC tables
• Projects with a material list you can share, and a history of the calculations you save

UNITS
Inches with fractions down to 1/32, or millimeters. One switch in Settings changes every field and every result.

GOOD TO KNOW
• Works offline: no account, no sign-up, your entries stay on your phone
• Shows banner ads. A consent form appears first where the law requires one
• A planning aid. Always check results against your code book, your bender's markings and local rules
• The formulas are covered by unit tests against hand-worked values. The NEC tables are published reference data; this app is not affiliated with NFPA

Recent changes:
The app now asks for a quick rating after a few successful uses. Small improvements.