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Bug fixes and improvements.
AWG and metric voltage drop for electricians. Check the run before you pull.
Voltage Cable Drop Calculator estimates voltage drop on a cable run so the job passes inspection. Built for electricians in the field: • One-way length in feet or metres • AWG 14 through 750 kcmil and metric 1.5–300 mm² • Copper or aluminum • DC, single-phase, and three-phase • 3% branch / 5% feeder guidance • Live PASS / CAUTION / FAIL • Next size that holds the limit The calculation uses the circular-mil method at 75 °C (K 12.9 copper / 21.2 aluminum). Metric sizes convert to circular mils. Power factor is included. Not a code-authority app. Confirm against the electrical code your inspector uses. Unlock is a one-time purchase: save named jobs and share a clean inspection card. Restore anytime. No account. Jobs stay on the device.