Capacitor Calculator
Capacitor charge & RC time
$2.99 · Designed for iPad. Not verified for macOS.
Capacitor Calculator is an all-in-one toolkit for students, hobbyists, technicians, and electrical engineers who work with capacitors every day. Whether you are designing an RC circuit, sizing a power supply, building a flash circuit, or studying electromagnetism for an exam, this app gives you fast and accurate answers together with the formulas and calculation steps behind every result.
THREE CALCULATORS IN ONE APP
1. Capacitor Charge and Time Constant
Enter supply voltage (V), capacitance (C), and series resistance (R) to instantly calculate:
• Stored energy: E = 0.5 * C * V^2
• RC time constant: T = R * C
• Charge stored: Q = C * V
2. Parallel Plate Capacitance
Compute capacitance using plate area, separation distance, and relative permittivity with:
C = e0 * er * A / d
Perfect for understanding how geometry and dielectric materials affect capacitance.
3. Spherical Capacitor
Calculate capacitance between two concentric conducting spheres using:
C = 4 * pi * e0 * er * R1 * R2 / (R2 - R1)
Choose from built-in dielectric materials including vacuum, air, paper, glass, mica, ceramic, polyethylene, polystyrene, Teflon, silicon, and water.
BUILT FOR REAL WORK
• Unit-aware inputs for voltage, capacitance, resistance, length, and area
• Scientific notation for very small or very large values
• Full calculation steps with formulas and substituted values
• Copy results with one tap
• Save and review calculation history
• Everything runs on-device with no tracking, no account, and no internet required
A POLISHED NATIVE IOS EXPERIENCE
• Full Light Mode and Dark Mode support
• Reference tab with physical constants, formulas, and dielectric materials table
Capacitor Calculator is a focused tool for electrical engineering, electronics design, physics homework, and EE coursework.
Download it once and keep professional-grade capacitor calculations in your pocket.
Thanks for your support, and visit nitrio.com for more apps for your iPhone and iPad.
Ratings & Reviews
- Optimized for the latest devices.
- Fixed minor bugs.
- Improved and redesigned the UI.
The developer, Nitrio, 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
- Tan Chia Ling
- Size
- 1.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © Tan Chia Ling
