Mobile Electrician3.0

Basic electrical calculations on your mobile
Mobile Electrician is a simple and powerful collection of electrical tools.
It helps to save both time and effort while providing accurate results to various calculations.
With this app you always have all important information at hand!

The app includes:

Basics:
Ohm's law for DC
Ohm's law for AC
LC Resonance
Y-Δ Transformation
Electrical Energy
Current Density
Ideal transformer
AC circuits
RC snubbers

Capacity:
Connection of capacitors
Capacitive reactance
Run a 3 phase motor on a single phase
Capacitive Voltage Divider
Capacitor Charge / Energy Calculator
Decode alphanumeric value
Encode alphanumeric value
Capacitor to reduce voltage
Calculation of discharge time of capacitors
Capacitor reactive power

Resistance:
Connection of resistors
Voltage divider
LED Resistor
Decode the color bands resistors
Encode the color bands resistors
Wheatstone Bridge Calculator
Decode alphanumeric value
Encode alphanumeric value
Standard Resistor Value

Inductance:
Connection of inductors
Wire Self Inductance
Inductive reactance
Inductive Voltage Divider
Decode the color bands inductors
Inductance of an air core inductor
Inductance of a solenoid

Conductor:
Conductor Resistance
Conductor length
Conductor size
Voltage drop
Electrical resistivity and conductivity
Maximum length of conductor

Motor:
Calculate Amps
Calculate Power
Calculate kVA (3 Phase)
Calculate Power Factor(3 Phase)
Calculate efficiency
Calculate of the motor slip
Calculate motor torque
Individual compensation three-phase induction motors
Calculate motor power for centrifugal pump
Calculate motor power for piston compressor
Calculate motor power for the fan
Three-Phase Motor Voltage Unbalance
Three-Phase Motor Current Unbalance
Motor Protection

Standards:
Allowable ampacities for wire (NEC,IEC,CEC,PUE,IET,AS/NZS)
Wire Size Calculator(NEC,IEC,CEC,PUE,IET,AS/NZS)
Motor protection(PUE)
Maximum circuit conductor length(NEC,IEC,CEC,PUE,IET,AS/NZS)
Maximum circuit ampacity(NEC,IEC,CEC,PUE,IET,AS/NZS)
Conduit Fill Calculator(NEC)

Others:
Minimum levels of short-circuit current
Short-circuit current at the secondary terminals of a MV/LV distribution transformer
Calculate fuse
Power of heating element
Heating Element use Nichrome
Leakage current
Calculation sizing a generator for your home
IP Code
Appliance classes
Force of an Electromagnet
Electricity Cost Calculator
Calculation of electrical loads applying demand factor
UPS Battery size calculator
UPS Battery runtime calculator
Calculation of transformer rating
Generator short circuit fault current
Calculation of earthing conductors
Compensation to increase the available active power of the transformer

Conversion:
Conversion Wire sizes
Conversion VA-W-VAr and calculate Reactive Power Compensation
Conversion cos(φ)-sin(φ)-tg(φ)
AWG Conversions
Conversion of units of temperature
Conversion distance
Conversion units of pressure
Conversion units of flow
Conversion units of volume
Conversion voltage
Conversion units of energy
Conversion SI prefixes
Conversion Weight
Time Units Conversion
Power Units Conversion

Cables:
Calculate number cables that fits in a pipe
Cable Reel Capacity
Length of cable on a reel
Inductive reactance cable
Calculate the weight of the metal in the cable
Cable weight by formulas
Wiring Color Codes
Length of a Hanging Cable
Power losses in cable
Sizing of protective earthing conductor

Calculation history
For each calculation is given a separate help
Mathematical calculator
Percentage calculator
Time calculator
Online and offline handbook
Making reports and screenshots. Save, print and send

Version History Calculation history — revisit any past result
Electrician jokes now available in English , Polish,German and French
Some other calculations have been updated
Other modifications and improvements
Bugs fixed. 3.0 Sep 20 New calculations according to the standard have been added(AS/NZS 3008.1.1:2017):
Allowable ampacities for wire
Wire Size Calculator
Maximum circuit conductor length
Maximum circuit ampacity
Upd. calculations to standards IEC,BSI
Some other calculations have been updated
Other modifications and improvements
Bugs fixed. 2.9 12/06/2025 Added new section IET (BS 7671 ("Requirements for Electrical Installations", IET Wiring Regulations))
Added calculations in new section:
Allowable ampacities for wire
Wire Size Calculator
Maximum circuit conductor length
Maximum circuit ampacity
In calculations to standards the choice of the number of conductors per phase in parallel has been added
Other modifications and improvements
Bugs fixed. 2.8 06/03/2025 Added to the Others section:
Compensation to increase the available active power of the transformer
Added to the Capacitance section:
Capacitor reactive power
Some calculations have been updated.
Other modifications and improvements.
Bugs fixed. 2.7 07/10/2023 Added to the Others section:
Calculation of earthing conductors
Updating IP Code
In Resources added:
Minimum insulation resistance
Some calculations have been updated
Other modifications and improvements
Bugs fixed. 2.6 01/19/2023 Added section Inductance:
Connection of inductors.
Wire Self Inductance.
Inductive reactance.
Inductive voltage divider.
Decode the color bands inductors.
Inductance of an air core inductor.
Inductance of a solenoid.
Some calculations have been updated.
Other modifications and improvements.
Bugs fixed. 2.5 12/10/2021 Updated start screen.
Updated time units conversion.
Updated section Help.
Some calculations have been updated.
In section Motor added Calculate Motor protection.
In Settings added Keep the screen on.
Other modifications and improvements.
Bugs fixed. 2.4 03/20/2021 Updated reports.
In handbook added some data:
Formulas, circuit diagrams, earthing system etc.
Search in help.
New calculations:
Generator short circuit fault current
Calculation of discharge time of capacitors
Some calculations have been updated
Other modifications and improvements.
Bugs fixed. 2.3 01/05/2021 Added default values to calculations.
The standard values of the cross section are added to some calculations.
Added Fahrenheit for ambient temperature.
Pressure converter updated.
Some calculations have been updated.
Other modifications and improvements.
Bugs fixed. 2.2 02/23/2020 The program is optimized for iOS 13.
Some calculations have been updated.
Other modifications and improvements
Bugs fixed. 2.1 11/13/2019 Updated calculations by standards.
Updated reports.
New calculations:
Standard Resistor Value.
Sizing of protective earthing conductor.

Other modifications and improvements.
Bugs fixed. 2.0 04/15/2019 Now reports are available for all calculations.
Other modifications and improvements.
Bugs fixed. 1.9 02/17/2019 Added calculation capacitor to reduce voltage
Added calculation of transformer rating
Added time calculator
Other modifications and improvements
Bugs fixed 1.8 12/22/2018 The ability to add comments to your reports.
Added calculation RC snubbers.
Updated time converter.
Updated online handbook.
Some calculations have been updated.
Other modifications and improvements.
Bugs fixed. 1.7 11/08/2018 Viewing information about input fields
Some calculations have been updated
Other modifications and improvements
Bugs fixed. 1.6 07/03/2018 Updated conductor size by formula
Some calculations have been updated
In "Others" added:
UPS Battery size calculator
UPS Battery runtime calculator
In "Converter" added:
Power Units Conversion
Added Turkish language for interface
Other modifications and improvements
Bugs fixed. 1.5 03/15/2018 Find calculation
Added dark and light theme
Added calculation of electrical loads applying demand factor
Some calculations have been updated
Other modifications and improvements
Bugs fixed. 1.4 02/06/2018 Mobile Electrician is optimized for iOS 11
Some calculations have been updated
Other modifications and improvements
Bugs fixed. 1.3 11/07/2017 Support RTL languages
Added Arabic and Polish languages for interface
New Calculation:
Calculate AC circuits
Power losses in cable
Other modifications and improvements
Bugs fixed. 1.2 08/21/2017 Interface changes
Favorites calculations
Some calculations have been updated
New Calculation:
Generator Sizing Calculator
Short-circuit current at the secondary terminals of a MV/LV distribution transformer
Power of heating element
Force of an Electromagnet
Other modifications and improvements
Bugs fixed. 1.1 07/10/2017 1.0 03/06/2017