Conduit Bending Calculator

Conduit bender app for electricians and apprentices who need the bend marks, not just the math. Lay out EMT, rigid and PVC pipe bending the way your tape reads it: offsets, rolling offsets, 3-point and 4-point saddles, 90° stub-ups and kicks. Get every mark measured from the end of the conduit, with shrink, bend spacing and step-by-step bending instructions. Includes a conduit fill calculator (NEC Chapter 9). Works completely offline.

CALCULATE EVERY CONDUIT BEND
• Offset bending: bend spacing, shrink and the first mark from the pipe end when working around an obstruction
• Rolling offsets: true offset and roll from the rise and the roll
• 3-point saddles with a 45°, 60° or 90° center bend
• 4-point saddles over boxes, beams and ducts
• 90° stub-ups using the take-up of the bender in your hand, back-to-back 90s and conduit needed
• Kick bends: travel, run and shrink, or the angle from rise and run
• Parallel offsets and kicks: keep a rack of conduits evenly spaced
• Segmented 90s and concentric bends: degrees per shot, mark spacing, developed length
• Compound 90s around round, square and rectangular obstructions in a corner
• Field matcher: measure an existing bend and get the angle to match it

REAL BENDER TAKE-UP AND RADIUS
Pick your conduit bender and shoe size and the marks use its real take-up and centerline radius. Profiles for 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 any value or add your own bender.

Marks land within 1/16" at any angle. Prefer the numbers on the bender sticker (30° = 2, 45° = 1.4, shrink 1/4" and 3/8" per inch)? Switch to field rules and both values are shown side by side.

TAPE-READY MEASUREMENTS
Type values on a tape-style keypad with 1/8, 1/16 and 1/32 chips. Feet and inches, millimeters or centimeters. Angles that cannot be bent with your numbers are flagged before you tap them.

VISUAL CONDUIT BENDING GUIDE
See the bend before you bend:
• Numbered conduit drawing with true bend arcs
• 3D view you can turn
• Tape strip with every mark from the same end
• Guide mode: one bend per screen, ideal for learning pipe bending as an apprentice

NEC CONDUIT FILL CALCULATOR
Conduit fill per NEC Chapter 9 for EMT, IMC, rigid, PVC Schedule 40 and 80, FMC and ENT. Box fill per NEC 314.16.

SAVE JOBS AND SHARE BEND SHEETS
Save any bend as a named job with a note. Recent calculations are kept automatically. The run planner fits several bends on one stick and warns about overlaps. Share a PDF bend sheet, a CSV or plain text.

MORE ELECTRICIAN TOOLS
• Level and bend angle finder that buzzes at your target angle
• Offset multiplier and shrink charts
• Saddle constants, take-up and gain charts
• Conduit size reference
• Built-in manual that shows what to measure for each bend

OFFLINE AND PRIVATE
No account, no ads, no analytics, no internet needed. Your jobs and benders stay on your phone. In English, Spanish, French, Portuguese and German, including the PDF bend sheets.

Always check marks against the deduct stamped on your bender before bending. This is a layout aid for trained electricians. Klein, Greenlee, IDEAL, Milwaukee, Southwire and Gardner Bender are trademarks of their owners; this app is not affiliated with or endorsed by them.

Recent changes:
• Kicked 90 steps: bend the 90 first, then the kick at right angles
• Bender list uses catalog radii for Klein 51606/51607 and Greenlee 841AH/842AH