Conduit Bending Calculator

Conduit bending calculator for electricians who want the marks, not the math. Enter measurements the way your tape reads them and get every bend mark, the shrink, the distance between bends and the steps in the order you make them. Works completely offline. One price, no subscription, no ads.

EVERY BEND ON THE JOB
• Offset and rolling offset, with the mark from the end when there is an obstruction
• Matching centers and matching bends offsets: measure an existing offset, get the exact angle
• Parallel offsets and parallel kicks: the adjustment per conduit so a rack stays even
• 3-point saddle (45°, 60°, 90° centre) and 4-point saddle with clearance
• 90° stub-up with the take-up of your bender, back-to-back 90s, conduit needed
• Kick: travel, run and shrink; solve the angle from rise and run
• Segmented 90 and concentric bends: degrees per shot, mark spacing, developed length
• Compound 90 around a round, square or rectangular obstruction in a corner
• Field matcher: measure a bend that already exists and match it

ACCURATE TO THE SHOE IN YOUR HAND
Exact trigonometry corrected for the centreline radius of your bender, so marks land within 1/16" at any angle. Or switch to field rules (30° = 2, 45° = 1.4, shrink 1/4 and 3/8 per inch) so your marks match a crew that uses the sticker numbers. Both numbers are shown side by side.

Bender catalogue: Klein, Greenlee, IDEAL, Milwaukee, Southwire and Gardner Bender hand benders from 1/2" to 1-1/4" EMT and rigid, plus Greenlee 1818 and 555 shoes. Edit take-up and radius, add your own, pin the ones you carry. A specs sheet shows deduct, gain, setback and travel per angle.

FASTER THAN A SLIDER
Tap a value, type it on the tape keypad with 1/8, 1/16 and 1/32 chips, done. Feet and inches, millimetres or centimetres with one setting. Angle chips turn red before you tap them when that angle cannot be made with the numbers you entered.

SEE IT BEFORE YOU BEND
Numbered drawing of the conduit with true bend arcs, a 3D view, a tape strip with every mark from the same end and a small bender under each mark showing which way the hook faces. Guide mode walks you through one step per screen with the bend animating into place.

NEC CONDUIT FILL AND BOX FILL
Chapter 9 conduit fill for EMT, IMC, rigid, PVC 40 and 80, FMC and ENT with THHN, XHHW and THW. Fill percentage, minimum trade size, maximum conductors per size. Box fill per 314.16 with every allowance listed and the smallest box that works.

JOBS, HISTORY AND SHARING
Save any bend as a job with a name and note. Every calculation you look at is kept in Recent so nothing is lost. Share a PDF bend sheet, CSV or plain text. Run planner puts several bends on one stick with overlap warnings.

ALSO INSIDE
Level and angle finder that buzzes when you hit the target angle. Quick reference for multipliers, shrink, saddle constants, take-up, gain and conduit ODs. A manual that shows what to measure for every calculator.

IN YOUR LANGUAGE
English, Spanish, French, Portuguese and German. Every screen, every step, every PDF.

No account, no analytics, no network access. Your jobs and benders stay on your phone.

Verify every measurement against the deduct stamped on your bender before bending. This is an estimating aid for trained electricians, not a specification. Klein, Greenlee, IDEAL, Milwaukee and Southwire are trademarks of their owners; this app is not affiliated with them.

Recent changes:
• More accurate marks: fixes to several bend calculations
• Simpler first-time setup: pick your bender in plain words
• Easier to use: clearer screens, inputs and results
• Bug fixes and stability improvements