Electrician Calc & Reference
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Description
Professional offline electrical reference for working electricians. 14 calculators, 18 wiring diagrams, 12 installation guides. One payment — no subscription.
Built for electricians, electrical engineers, and contractors who need accurate answers fast — on-site, in the field, without internet access.
WHY PROFESSIONALS PAY FOR THIS
Most electrical apps are free because they show ads or chase subscriptions. This app works completely offline. You pay once and own it. No monthly fees. No internet required on the job. No ads interrupting a calculation mid-install.
CALCULATORS (14)
Solve real electrical problems before you touch a wire:
Ohm's Law — DC and AC modes
Motor Full Load Current
Voltage Drop & Power Loss in Cable
Conductor Resistance & Conductor Size
Voltage Divider · Battery Life
Series & Parallel Resistor
Series & Parallel Capacitor
Most calculators include 2–4 input modes. Results in seconds.
WIRING DIAGRAMS (18)
Professional-grade wiring diagrams for residential and industrial work:
Home Wiring · Distribution Board · Electricity Meter
DOL Starter · Forward/Reverse Motor Control
ATS (Automatic Transfer Switch) · Generator Connection
GFCI Outlet · Dimmer Switch · Ceiling Fan
One-Way · Two-Way · Three-Way Switch
Socket Wiring · Socket + Switch Combo
Earth Leakage Relay · Phase Failure Relay
INSTALLATION GUIDES (12)
Step-by-step guides for jobs electricians actually do:
Residential & Commercial wiring
Circuit Breaker · Light Switch · Ceiling Fan
Air Conditioning · Solar Panel · EV Charger
Generator · Security System · Smart Home
ELECTRICAL THEORY (10 chapters)
Reference-grade theory when you need to verify the fundamentals:
Ohm's Law · Power · Resistance · Capacitance · Inductance
AC Circuits · Transformers · Motor · Energy & Cost · Voltage Drop
UNIT CONVERTERS (14 categories)
Current · Voltage · Resistance · Power · Energy
Length · Temperature · Pressure · Angle · more
REFERENCE TABLES (9)
ANSI · Cable Reactance · Capacitor Color Code
IEC 60320 · Standard Resistor · Thermocouple
UL Fuse Class · Pipe Dimension
FORMULAE LIBRARY
10 categories of working electrical formulas, offline.
SAFETY GUIDE & GLOSSARY
Essential electrical safety reference. Searchable term dictionary.
QUIZ MODE
Test and reinforce your knowledge. 50:50 lifeline, daily streaks.
One payment. Works offline. No subscription. No ads.