BendPro: Conduit Bender Calc

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Conduit bending calculator built for working electricians. Offsets, saddles, stub-ups, kicks, rolling offsets: every common bend with the math, marks, and a clean diagram on one screen. Take-up and gain values for Klein, Greenlee, Ideal and Gardner Bender baked in. NEC Chapter 9 wire fill table included.

OFFSET BEND CALCULATOR
Enter offset depth, pick an angle (10°, 22.5°, 30°, 45°, 60°), and BendPro shows the distance between bends, the shrink, the multiplier and a labelled diagram. Tap any saved offset to recalculate at a different angle.

3-POINT AND 4-POINT SADDLES
Saddle around an obstruction without guessing. Enter saddle depth and obstruction width: BendPro returns the centre and outer bend angles, the mark spacing, and the shrink. The diagram shows obstruction, marks, and the angle of every bend.

90° STUB-UP CALCULATOR
Pick your bender (Klein, Greenlee, Ideal, Gardner Bender) and conduit size: take-up is read straight from the manufacturer table. Subtract from your stub height to get the mark from the end of the conduit. Custom take-up if your bender isn't listed.

KICK AND ROLLING OFFSET
Enter kick height and distance: BendPro returns the kick angle, conduit travel and a diagram. Rolling offsets handle a horizontal AND vertical run in the same bend, with roll angle and true offset clearly labelled.

WIRE FILL: NEC CHAPTER 9
Pick conduit material (EMT, IMC, Rigid, PVC) and size, add THHN/THWN or XHHW conductors, see the fill percentage with the NEC limit (53/31/40 %) clearly marked. Over-fill is flagged in red.

QUICK REFERENCE
Take-up and gain tables for every supported bender, plus the offset multiplier table (10° → 6.0, 22.5° → 2.6, 30° → 2.0, 45° → 1.4, 60° → 1.2), the values you keep on a sticker on your bender, on your phone.

HISTORY AND FAVORITES
Every calculation is saved automatically. Bookmark the ones you re-run. Tap any saved entry to open it back up, change a value, share the result with the apprentice.

INCHES OR METRIC
Imperial fractions ("12-3/16\"") by default. Toggle metric in settings for millimetres. Bender deductions are converted on the fly.

DARK MODE
Default dark theme: easier on the eyes in a basement, in an attic, on a roof at sunset.

PREMIUM UPGRADE
Remove all ads, unlimited favorites, unlimited history, and diagram export: send a clean annotated bend diagram straight to your crew. One-time unlock, no subscription.

PRIVACY
Every calculation lives on your device. No accounts, no cloud, no tracking. Uninstall removes everything.

BendPro is for electricians who want answers fast, not another reference book full of tables. Verify every measurement against the deduction stamped on your bender shoe before bending. For estimation only.

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