Electrical Calculations

Ettore Gallina

Contains adsIn-app purchases

About this app

Electrical Calculations is the PROFESSIONAL app for those who work with electrical systems every day: design, size and verify in just seconds, from the job site or the office. Over 200 calculations, diagrams, formulas and tables in a single app, with clear, printable PDF reports to attach to your documents.

Designed for electricians, installers, designers and surveyors, it saves you time and helps you avoid mistakes: from cable sizing to short circuit.

COMPLIANT WITH STANDARDS
Reliable results aligned with the main standards: IEC (International Electrotechnical Commission), CEI (Italian Electrotechnical Committee), NEC (National Electrical Code), CEC (Canadian Electrical Code).

WHY CHOOSE IT
SAVE TIME: the calculations you'd do by hand, instantly available here.
AVOID ERRORS: verified formulas and up-to-date regulatory parameters.
PROFESSIONAL REPORTS: PDF reports ready for printing and archiving.
ALWAYS WITH YOU: over 200 tools including calculations, converters, tables and pinouts.


THE MOST USED CALCULATIONS
Cable sizing and coordination with the protective device, voltage drop, operating current, current intensity, voltage and power (active, reactive, apparent). Power factor and power factor correction. Current capacity of conductors and busbars, sizing of conduits and trunking, maximum cable length.

SHORT CIRCUIT AND PROTECTION
Short-circuit current at a point on the line, earthing system and coordination with the residual current device, cable protection against short circuit (K²S²), power loss, cable temperature, neutral current.

ELECTRIC MOTOR
Motor current, power, voltage, efficiency and power factor, slip, speed, maximum torque and full-load current. Three-phase motor connection diagrams, terminal markings. Three-phase to single-phase.

ELECTRONICS
Color and alphanumeric codes for resistors, capacitors and inductors, SMD code, LED resistor, voltage and current divider, Zener diode, battery life, resonant frequency, fuses and transformers.

CONVERSIONS
Delta-star, AWG, SWG, cross-section, length, energy, temperature, pressure, Ah/kWh, var/µF, Gauss/Tesla, RPM and many more.

RESOURCES AND TABLES
Tripping curves, cable reactance and resistivity, cable dimensions and weight, distribution systems (TT, TN, IT), IP/IK/NEMA protection ratings, ATEX marking, insulation classes, electrical symbols, ANSI device codes, plugs and sockets, IEC 60309, NEMA and EV charging connectors, SI prefixes and units of measurement, thermistors and thermocouples.

PINOUTS
Ethernet RJ-45, Ethernet with PoE, USB, HDMI, VGA, DVI, RS-232, FireWire, SATA, DisplayPort, Apple Lightning, Raspberry Pi, OBD II, XLR audio/DMX, MIDI, Jack, RCA, Thunderbolt, SD Card, SIM Card and LED.


Stop searching everywhere for formulas and tables: PUT YOUR ENTIRE ELECTRICAL LAB IN YOUR SMARTPHONE. Download Electrical Calculations and work faster, with standards-compliant results.

Ratings and reviews

They switched from a pay once to a yearly subscription scheme, and that's something I'll never go for. I have a license of the pay-once version from some time ago, and although I should be entitled to install it on a replacement phone, the app now asks for yearly subscriptions. It is ok to pay once for an (otherwise pretty useful) app, but I'm not going to subscribe to perpetually leaking fees. What a pity.

lots of formulas, calculators, etc... . seems like it could be excessive and too wide ranging for any one individuals needs, but i suppose better too much than too little. . .. would like to be able to play with a few features that don't have the lock key symbol next to them, but when i click on them I'm taken to pop up screens soliciting for purchase of the app. probably more an oversight than a nag. would've liked to have seen one or two of the definitions just to see the format, but they're all locked (example -surely unlocking ohms law definition wouldn't be an issue - I'm sure anyone looking at an app like this already knows it by heart).

I gave it 2 stars instead of 1, only because if you pay for pro it would be useful and overall they don't deserve 1 star. Very few things you can do without paying pro. They have things in the app that don't have a key icon(requires pro) and then when you try to use it, it says you need pro. Frankly if they didn't lie about what you get, I'd give maybe 3-4 stars. Pro seems like it would be a 5 star app.

What’s new

v11.1.2
* Mod: Improved license management
* Fix: Late init property in "RCA Color Code"
* Fix: Conduit filling ignored in "Conduit and cable tray sizing IEC/CEI"
* Mod: Improved some translations
* Fix: ActivityDetail closed by itself on foldables
* Fix: Minor bug fix