60+ electrical calculators in one app — Ohm's law, voltage drop, wire sizing, transformers & more. Built for electricians, engineers and students.
Electrical Calculator is your all-in-one app for fast, accurate, and essential electrical calculations. Packed with 60+ powerful tools, it's designed for electricians, electrical & electronics engineers, and students. Every calculator includes built-in formulas and supports both USCS and SI units.
What's New:
• Category filters — find any calculator in seconds with purpose-based groups: Ohm's Law, Wiring & NEC, Power & Phase, Motors, Transformers and more
• Refreshed design with a cleaner look
Core Calculators:
• Voltage, Current, Resistance & Power (Ohm's Law)
• kVA to Amps / Amps to kVA (Single & Three Phase)
Electrical System Calculators:
• Voltage Drop Calculator (per NEC/IEEE standards)
• Wire Size Calculations (AWG & mm²)
• Power, Current & Horsepower (DC, Single & Three Phase)
• Efficiency & Power Factor Calculators
• Neutral Current (3-Phase Unbalanced Loads)
Transformers & Generators:
• Transformer Current, Voltage & Resistance Imbalance
• DC Generator
Reactance & Impedance:
• Inductive & Capacitive Reactance
• Resonant Frequency
• Characteristic Impedance (Parallel & Coaxial)
• Impedance Calculators (R-L-C combinations)
Series / Parallel Calculations:
• Resistance, Inductance & Capacitance (Series & Parallel)
• Unknown Resistance & Capacitance (Series & Parallel)
Components:
• Resistor Color Code — resistance to color bands and back
• Inductor & Capacitor Sizing Formulas
Lighting & Energy Tools:
• Luminous Intensity, Luminous Flux & Solid Angle
• Energy Cost Calculator
• Energy Stored in Resistors, Inductors & Capacitors
Conversions:
• Star ↔ Delta Conversion
• Field Strength & Electrical Potential
• Resistance, Resistivity, Conductance & Conductivity
• Capacitance, Inductance & Charge Density Converters
• Power Converter
Key Features:
• Category filters for fast navigation
• Flexible unit selection for inputs and outputs
• Full iPad support with split view
• Dark Mode and 12 languages
• Clean interface for the field, the shop, and the classroom
I wish with all my past working experiences, I could have had a great little Program like this, it would have saved me from a lot of time.Brilliant Program.😀
Based on AWG cables
In a word - disappointed
If you are in the USA this will probably work for you.Try to work out volt drop in AWG in metric Europe / UK After paying for the supposed 50 calculators, in less than 3 mins the app was trying to sell me 16 more! I want my money back.
Developer Response
Dear Customer ,We will try to AWG wire sizes in (SI) system in the next update.Anyway if you need refund, kindly contact Appstore.with regardsV PUGAZHENTHI
• Find calculators faster — new category chips group all 60+ calculators by purpose
• Bug fixes and improvements
Version 11.2
The developer, V PUGAZHENTHI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based, for example, on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More