PowerECal - Power Electronics, Power Supply and Magnetic Engineering Calculator includes magnetic builder, the magnetic formulas calculation, units conversion and wires conversion tables. It's a very useful tool for power electronic engineers.

Magnetic Builder:
Magnetic Builder is a useful magnetic design software. It is a tool for user to create his/her own magnetic component (inductor and transformer) by selecting different ferrite core, bobbin type and winding method. Engineering drawing will be automatically produced to reduce user work load.

Magnetic Properties:
Transformer / Inductor / Magnetic flux density Calculator
- which can calculate peak flux density(Bp) against peak current Ip or voltage Von and duty cycle Don;
Magnetic Unit Conversion
- The conversion of MMF magnetomotive force between Oe and A/m, and flux density between T and G;

Air Flow:
Volume & Velocity Unit Conversion
- The conversion among ft³/s, m³/s, cubic feet per minute(cfm, ft³/min), million gallon per day(mgd) and Liter/s;
- The conversion among mile per hour(mph, mile/hr), km/hr, m/s, feet per second(ft/s) and feet per minute(ft/min);
Temperature Rise vs Air flow Calculator
- which can calculate Velocity and Volume needed for the air flow through a box. By inputting cross section dimension, power dissipation(Pd)inside the box and temperature rise(dT) of the outlet air flow, result can be shown according to the provided illustration.

Wire Gauge sizes table:
- According to wire numbers, list the different wire diameters in SWG(mm) and AWG(mm).

PCB Copper Trace Thickness Unit Conversion:
- The conversion among Ounce(oz), mil and milimeter(mm);

Energy, Pressure and Power Unit Conversion:
- The conversion among Joule(J), calorie(cal) and British therm unit(Btu);
- The conversion between bar and N/m²;
- The conversion among horse power(hp), ft lb/s, British therm unit per second(Btu/s), British therm unit per hour(Btu/hr), kW and Watt(W);

Temperature Unit Conversion:
- The conversion among degree Celsius(C), degree Fahrenheit(F) and Kelvin(K);

Dimension & Weight Unit Conversion:
- The conversion among cm³, inch³, Liter, m³ and gallon;
- The conversion among Pound(lb), kg, Newton(N), ton, Ounce(oz) and g.

PowerECal is a mobile/short version of PowerEsim where PowerEsim is free SMPS power supply design, manufacturer & product database/list, switching converter topologies, circuit analysis, magnetic design software, transformer/inductor simulation & calculation software, DVT, Differential mode EMI simulation, EMI measurement, Harmonics, Thermal, MTBF, S-Z Closeloop and Transcient analysis, Life time and Monte Carlo analysis tool. It support LED driver design, PFC, notebook adaptor, phone charger, DVD, TV, PC, ballast, dc-dc, ac-dc, dc-ac converter etc.

This software is developed by PowerELab .

What's New

Version 2.2

Automatically detects whether the device is connected to the Internet.

Ratings and Reviews

Handsome biy

Useful tool

Very useful tool for electronics engineer!


Ngai Kit Franki Poon
18.4 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2018 PowerELab Limited


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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