Precision Coil Design Made Simple
VSTSA-APP is a dedicated inductance-calculation toolkit designed for engineers, students, and makers who work with magnetic components. The app provides four specialized calculators — Solenoid, Wheeler, Toroid, and Spiral — covering nearly all common coil geometries used in electronics and RF design.
Designed for professionals and enthusiasts who need precise inductance calculations
Provides precise inductance calculation tools for professional engineers, supporting complex circuit design
Helps designers quickly validate and optimize magnetic components in power electronics systems
Provides precise PCB spiral inductance calculations for NFC, IoT, and sensor applications
Ideal tool for educational settings, helping students understand inductance design principles
Provides simple and easy-to-use custom inductance design tools for makers and DIY enthusiasts
Designing an inductor often requires tedious formulas, unit conversions, and repeated recalculations. VSTSA-APP solves this by providing fast, accurate, and field-ready inductance estimation tools — no spreadsheets, no textbooks, no guesswork.
Each coil type has a clear geometric parameter input interface
Quickly obtain inductance calculation results with practical units
Provides built-in sample data to help with quick learning and understanding
Helps reduce design errors before fabrication, saving time and costs
Ideal tool for rapid prototyping and lab work
Four specialized calculators covering all common coil geometries
Precisely calculates the inductance of straight solenoids, supporting various wire and core materials
Uses the classic Wheeler formula for quick inductance estimation, suitable for various applications
Specifically designed for precise toroidal core inductance calculations, supporting various core materials
Provides precise calculations for PCB spiral inductors, especially suitable for RF and antenna design
VSTSA-APP in real-world applications
Design high-performance magnetic components for power management and signal processing applications, ensuring circuit stability and efficiency
Precisely calculate PCB spiral inductors for NFC, IoT devices, and sensor applications, optimizing wireless communication performance
Validate solenoid and toroid designs in educational and lab environments, helping students understand electromagnetic principles
"VSTSA-APP has completely transformed my workflow. No more manual calculations and formula lookups—all calculations are done in one app. Very professional and easy to use!"
"As a student, this app has helped me better understand inductance design. The built-in sample data allowed me to get started quickly, and the interface design is very intuitive."
"When developing IoT devices, VSTSA-APP's spiral inductor calculator is very accurate. It saved me a lot of prototype testing time. Highly recommended!"
Professional inductance calculation tools that make coil design simple and efficient
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