Electrical Engineering Toolkit
Electronics Circuit Calculator
Free · In‑App Purchases · Designed for iPad
Design faster, check formulas instantly, and get confident answers—whether you’re wiring a prototype, laying out a PCB, or verifying lab results. This all-in-one toolkit brings together the most-used electronics calculators so you don’t have to jump between apps or spreadsheets.
Core Circuits & Passives
• Ohm’s Law (V, I, R, P)
• Resistor color code (through-hole & SMD)
• Series/parallel & voltage divider
• Capacitance & capacitor impedance (RC)
• Inductance/reactance/admittance; coil/loop inductance
• Battery life estimation
• RMS/peak/peak-to-peak voltage
• Decibel (dB) converters for power/voltage levels
Analog & RF Essentials
• Op-amp gain/voltage and inverting resistor calculators
• Impedance matching: π-match and T-match
• RF power: ratio/units conversion, PAE, N-way power divider
• dB/dBm helpers for quick link-budget math
These are the same families of tools engineers rely on for day-to-day analog and RF work.
PCB & Signal Integrity (EDA)
• Microstrip/stripline impedance (single-ended & differential)
• Trace width and max current
• Crosstalk (edge/broadside), wire/microstrip inductance
These capabilities mirror what dedicated PCB toolkits and online impedance calculators provide—now in one place on your phone.
Electromechanical & Power
• Lenz’s & Faraday’s laws (induced EMF)
• Torque conversion and stepper motor helpers
• Flyback SMPS building blocks
• Heat sink basics & power density
• Peak/peak-to-peak/RMS and power conversions
These bridge the gap between bench calculations and real hardware choices.
Physics & Foundations
• Lorentz force, electrical energy, RC time constant, LC tank resonance—handy checks for labs and exams alike.
Why this app?
• Comprehensive: from Ohm’s Law and resistor codes to PCB impedance and RF power—covering the everyday set engineers actually use.
• Built for speed: clean inputs, clear results, and units you expect.
• For everyone: students learning the basics, makers iterating quickly, and professionals verifying designs.
Perfect for: electronics labs, field service, ham/RF projects, PCB layout checks, audio/dB work, and rapid “sanity-check” calculations during reviews.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
Added new sections with calculators: Analog, Connectors, EDA, Electromechanical, Optoelectronics, Passives, PCB,Power
The developer, Vladislav Zhirnov, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Vladislav Zhirnov
- Size
- 12.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.2 or later.
- iPhone
Requires iOS 16.2 or later. - iPad
Requires iPadOS 16.2 or later. - Mac
Requires macOS 13.1 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
English and 31 more
- English, Arabic, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full version / monthly $0.99
- Full version / year $3.99
- Support project, remove ADS $5.99
- Copyright
- © zhirnov.zsystems