Instantly calculate voltage drop for DC, AC single phase, and 3 phase circuits. Get NEC-compliant results for sVoltage Drop Calculator Pro is a high-authority engineering tool built for electrical contractors and engineers. It simplifies complex wire sizing with precision support for 3-phase, DC, and Solar PV systems.
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Maker
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Hi everyone! 👋
I’m the creator of Voltage Drop Calculator Pro.
As someone who works with electrical systems, I was consistently frustrated by the existing tools available online. Most were either cluttered with intrusive ads, had confusing layouts, or looked like they hadn’t been updated since the mid-90s.
I built this suite to be the "last voltage drop calculator you'll ever need." My goal was to bridge the gap between industrial-grade precision and modern user experience.
Why we built this:
The "90s UI" Problem: We wanted a tool that feels premium and works perfectly on a tablet while you're out in the field.
Industrial Depth: Most calculators ignore 3-phase motor loads or complex DC systems. We built those in from day one.
Global Accessibility: Electrical work is global, so we implemented full native Spanish support for cross-border teams.
I’d love to get your feedback on the interface! Are there any specific electrical formulas or "calculator tools" you feel are missing from your current workflow? ⚡️
Looking forward to the discussion!