BendBox: Conduit Bending Calc

BendBox puts the math electricians use every day into one fast app that works offline. Get exact bend marks, size conduit, check voltage drop and count box fill in seconds. CONDUIT BENDING - Offsets, rolling offsets and parallel offsets - 3-point and 4-point saddles, kicks, 90° stubs, back-to-back 90s and segmented 90s - Numbered marks to the nearest 1/16", with a live bend diagram - Bend Check warns you when bends are too tight or can't be bent - Save the deduct and gain for your own benders - Enter 12 1/2, 12-1/2 or 3' 4 — inches or centimeters CONDUIT FILL - EMT, PVC Schedule 40 and 80, RMC, IMC and FMC, 1/2" to 4" - Mix wire sizes and see the percent fill against NEC limits - Instantly see the smallest conduit that works VOLTAGE DROP - Single-phase and three-phase, copper or aluminum - 14 AWG to 500 kcmil - Shows the smallest wire that keeps you under 2, 3 or 5% BOX FILL - Standard boxes or a custom volume - Counts conductors, clamps, fixture studs, devices and grounds - Uses the current ground-wire rule, with a line-by-line breakdown ALSO INCLUDED - Ohm's law and power calculator - Offset multiplier and shrink chart - Light and dark mode Built for journeymen, apprentices, foremen and electrical students studying for their exam. One purchase. No subscription, no ads, no account, and no data collected. BendBox is a reference tool based on NEC (NFPA 70) tables. Always follow the code edition adopted in your area and your bender manufacturer's specs. NEC and National Electrical Code are registered trademarks of the National Fire Protection Association; BendBox is not affiliated with NFPA.