BenchKit: Electronics Tools
Fast offline circuit math
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
BenchKit puts four everyday electronics calculations in one focused, offline iPhone app.
RESISTOR COLOR BANDS
Decode 4, 5, and 6-band axial resistors. See the nominal resistance, tolerance range, and temperature coefficient where applicable.
PCB TRACE WIDTH
Estimate minimum internal or external copper trace width from current, copper weight, and allowed temperature rise. Results are shown in millimeters and mils.
VOLTAGE DROP & POWER
Check line voltage drop, delivered voltage, resistive power loss, and retained voltage.
VOLTAGE DIVIDER
Calculate ideal unloaded output voltage, divider current, total dissipation, and Thevenin resistance.
No account. No ads. No analytics. No network connection. English, Simplified Chinese, and Japanese.
BenchKit is a quick estimation tool. Always verify production designs against component datasheets, applicable standards, simulation, and physical validation.
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The developer, 明 齐, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 明 齐
- Size
- 2.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © Ming Qi