FIG. 00 — IN PROGRESS
KCMIL TO MM² CONVERTER
Convert kcmil (thousand circular mils) to mm² for large conductor sizing. Use the AWG to mm² converter for full AWG/kcmil/CM/diameter/resistance lookup in one tool.
⚠ STATUS · TOOL UNDER FINAL VALIDATION
We're finalizing this calculator's NEC validation. In the meantime, use the awg to mm² converter and the wire fill chart on the homepage.
FIG. 01
WHAT THIS TOOL WILL CALCULATE
- 01Input: kcmil value (250, 300, 350, 400, 500, 600, 750, 1000)
- 02Output: mm², circular mils, diameter (mil and mm), DC resistance per 1000 ft
- 03Source: NFPA 70 (2023) Table 8 — stranded copper at 75°C reference values
- 04Pairs with conduit fill calculator for the cross-sectional area input to fill computation