Conduit Fill Calculator
Calculate conduit fill percentage per NEC Chapter 9. Supports EMT, IMC, and RMC conduit types.
Results
Fill Percentage
4.6%
Max Conductors
21
Status
✓ COMPLIANT
NEC Conduit Fill Requirements
| Number of Conductors | Maximum Fill |
|---|---|
| 1 conductor | 53% |
| 2 conductors | 31% |
| 3 or more conductors | 40% |