Voltkit App

Electrical math where you actually use it

VoltKit bundles the electrical calculators you reach for on rough-in, remodels, service changes, and plan review—voltage drop, wire sizing, conduit and box fill, loads, motors, EV circuits, and quick NEC-minded references—without bouncing between bookmarks.

Built for electricians, apprentices, contractors, inspectors, and anyone who needs a straight answer before they cut strut or pull wire.

Calculators and tools included

Each screen is built around one job: punch in what you know, get a usable number, then cross-check against the code book and the AHJ.

• Ohm’s Law

  V, I, R, and power relationships for quick circuit sanity checks.

• Watts / Amps / Volts

  Swap load, current, and voltage without scratching on conduit.

• Basic Voltage Drop

  Branch-circuit VD percentages when length starts to matter.

• Wire Ampacity Lookup

  Copper sizing context with derating in mind—still verify tables.

• NEC Quick Reference

  Fast lookups so you spend less time flipping pages mid-job.

• NEC 2026 Load Calculator

  Residential-style load methodology aligned with current tooling in the app.

• EV Charger Demand

  EV branch sizing context for common charger installs.

• Feeder / Service Load

  Service and feeder demand thinking for planning—not a substitute for a full study.

• Conduit Fill

  Fill percentages before you lock in a raceway size.

• Box Fill

  Device and conductor counts translated into box volume rules.

• Advanced Voltage Drop

  Heavier VD scenarios when simple branch math is not enough.

• Motor FLA + Breaker

  Motor circuit guardrails from FLA toward protection sizing.

• Panel Schedule

  Organize circuits and loads when you are documenting a panel.

Why VoltKit exists

Electrical work runs on fast answers: Is my VD acceptable? Is this conduit legal fill? Does this box have enough cubic inches? What does this motor need? What is the realistic load on this service? VoltKit keeps those tools in one pocket—calculator-first, no corporate dashboard nonsense.

• Voltage drop and wire sizing checks before you pull copper.
• Conduit fill and box fill before inspectors sign off rough.
• Service and feeder load estimates when you are planning gear.
• EV charger demand context when garages get upgraded.
• Motor FLA and protection sizing starting points.
• NEC-minded references when you need a reminder under pressure.

What you get

VoltKit is organized for field use: large inputs, readable outputs, and tools grouped the way wiring work actually flows. Details on included calculators, ads or upgrades (if any), and NEC edition notes are on the Google Play listing—that source stays current when the app updates.

• Calculator-first layout — fewer taps between question and answer.
• NEC-oriented tools where the app labels them; always verify against your adopted code cycle.
• Mobile-first — thumb-friendly on a ladder or in a crawlspace.
• No hunting through scattered pages — one install for the electrical toolkit.

TestTalkHQ web calculators stay available on a big screen when you want printouts or side-by-side tabs; VoltKit is for when you are standing in front of the gear.

Related TestTalkHQ electrical tools

Use the website when you want a bigger keyboard, printable context, or multiple tabs beside the code book.