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Fast, private, client-side calculators for electricians, engineers, trades, and everyday math. Built with verified formulas and dynamic 2D visuals.
Conduit & Cable Fill Calculator
Verify wire capacity, multi-conductor combinations, conduit types (EMT, RMC, PVC, FMC), nipple rule 60% limits, and jamming ratios with dynamic 2D circle-packed cross-sections.
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Try searching for different keywords such as "conduit", "wire", "voltage", "concrete", or "power".
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Runs 100% inside your browser with zero latency and zero server lag.
Private & Secure
No tracking, no account required, and no input data sent over the network.
Verified Standards
Engineered against official codebooks (NEC, NFPA 70, IEEE) with transparent math.
Field Report Export
Copy formatted tables or print clean PDF summaries directly from the job site.