Conduit Bends Between Pull Points (360-Degree Rule)
Sums conduit bend angles against the 360-degree limit between pull points.
Example
You enter
- Bend1 (deg) 90
- Bend2 (deg) 90
- Bend3 (deg) 45
- Bend4 (deg) 45
You get
- Total bend (deg) 270
- Equivalent quarter bends 3
- Within limit Yes
Checked against published worked examples from: NEC 2023 (NFPA 70).
Details, formula, and sources
ScopeSums up to six conduit bend angles and checks the NEC 358.26 (and matching Chapter 3 .26) limit of 360 degrees of total bend (four quarter bends) between pull points, with the equivalent quarter-bend count and the verdict to add a pull point. An offset counts both of its bends and a saddle all three; the AHJ governs.
Formula or tabletotal_deg = sum of the entered bend angles; quarter_bends_eq = total_deg / 90; verdict: total_deg <= 360 within limit, else insert a pull point.
Source and editionMaximum bends between pull points (360 degrees / four quarter bends), NEC 2023 358.26 and the matching Chapter 3 .26 sections, by name.
Free accessNEC is free to read at nfpa.org/freeaccess. No run between pull points may contain more than 360 degrees of total bend; an offset counts both of its bends and a saddle all three.
What governsEstimate. AHJ and licensed electrician govern. Verify against the NEC edition adopted in your jurisdiction.
API field namesbend1_deg, bend2_deg, bend3_deg, bend4_deg, total_deg, quarter_bends_eq, within_limit
- 360-degree limit the sum of all bends between pull points (boxes, conduit bodies, fittings) may not exceed 360 degreesNEC 358.26 and matching .26 sections
- Bend counting an offset = its two bends, a saddle = its three bends; equivalent quarter bends = total / 90NEC Chapter 3 raceway articles