Conduit Fill: NEC Calculator

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Will it fit. What it loses. What you pull. Offline field calculator for US residential and light-commercial electricians. One job carries the same wires across Fill, V-Drop, and Wire. Switch 2023 and 2026 in the header. One $7.99 purchase. No subscription, no account, no ads. WILL IT FIT Kitchen default is 14.8% FITS on ½" EMT with 3×#12 THHN plus a bare #12 ground. Status words stay shop talk: FITS, TIGHT, OVER. Ground uses bare area and does not upsize with the hots. WHAT IT LOSES Tap 20A rec. The 85 ft run goes HIGH at 4.5%. Upsize hots to #10 (2.8%). Ground stays #12. Feet are one-way, not the loop. WHAT YOU PULL The answer is the AWG. Put #10 on the pull because voltage drop at 85 ft, not because ampacity ran out. WHAT PIPE For EMT use ½". Types stay in shop order — EMT, then PVC, IMC, RMC — not ranked by fill percent. HAND THIS TO THE INSPECTOR One-page PDF with the job, pipe, wires, fill, voltage drop, and what you pull. Free PDFs carry a SAMPLE mark. FREE AND UNLOCK Free: fill on EMT and THHN, one What pipe?, one V-Drop, one saved job, 2026, SAMPLE PDF. $7.99 once: unlimited V-Drop and What pipe?, Wire, 2023 and 2026, 50 jobs, clean PDF. Restore lives in Settings. Works in airplane mode. Tables ship in the app. This is a field calculator. It is not NFPA 70, not the codebook, and not AHJ approval. Verify every pull against the edition your inspector is using. ◆ Privacy Data Not Collected. No tracking. ◆ Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ◆ Support https://conduitcalc.txyou.com/supportRead more

Will it fit. What it loses. What you pull. Offline field calculator for US residential and light-commercial electricians. One job carries the same wires across Fill, V-Drop, and Wire. Switch 2023 and 2026 in the header. One $7.99 purchase. No subscription, no account, no ads. WILL IT FIT Kitchen default is 14.8% FITS on ½" EMT with 3×#12 THHN plus a bare #12 ground. Status words stay shop talk: FITS, TIGHT, OVER. Ground uses bare area and does not upsize with the hots. WHAT IT LOSES Tap 20A rec. The 85 ft run goes HIGH at 4.5%. Upsize hots to #10 (2.8%). Ground stays #12. Feet are one-way, not the loop. WHAT YOU PULL The answer is the AWG. Put #10 on the pull because voltage drop at 85 ft, not because ampacity ran out. WHAT PIPE For EMT use ½". Types stay in shop order — EMT, then PVC, IMC, RMC — not ranked by fill percent. HAND THIS TO THE INSPECTOR One-page PDF with the job, pipe, wires, fill, voltage drop, and what you pull. Free PDFs carry a SAMPLE mark. FREE AND UNLOCK Free: fill on EMT and THHN, one What pipe?, one V-Drop, one saved job, 2026, SAMPLE PDF. $7.99 once: unlimited V-Drop and What pipe?, Wire, 2023 and 2026, 50 jobs, clean PDF. Restore lives in Settings. Works in airplane mode. Tables ship in the app. This is a field calculator. It is not NFPA 70, not the codebook, and not AHJ approval. Verify every pull against the edition your inspector is using. ◆ Privacy Data Not Collected. No tracking. ◆ Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ◆ Support https://conduitcalc.txyou.com/support

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