What's New

User interface optimized to support iPhone 5 as well.

App Description

Electronics Filters Calc - 20 most useful filter calculators to solve complex electronics filters calculations in fraction of seconds.

EFC is recommended for electronics engineers, electrical engineers technicians, graduates and high school students.

20 Calculators
Butterworth Pi Low Pass Filter (up to 50 components)
Butterworth Pi High Pass Filter (up to 50 components)
Butterworth Tee Low Pass Filter (up to 50 components)
Butterworth Tee High Pass Filter (up to 50 components)
Chebyshev Pi Low Pass Filter (up to 49 components)
Chebyshev Pi High Pass Filter (up to 49 components)
Chebyshev Tee Low Pass Filter (up to 49 components)
Chebyshev Tee High Pass Filter (up to 49 components)
Sallenkey BW Low Pass Filter
Sallenkey BW High Pass Filter
Equal Component BW Low Pass Filter
Equal Component BW High Pass Filter
Capacitor Energy and RC Time constant
LC Resonance
Reactance (Capacitance)
Reactance (Inductance)
PI Attenuator
Tee Attenuator
Voltage Divider
Wheatstone Bridge

Special & Unique Features
Bundled with 20 filter related calculators.
The formulas and related info is attached with each Calculator
Save calculations for future reference.
Load previously saved calculations.
Share the calculations via Email or SMS.
Accuracy 5 decimal points
Enhanced GUI Experience -
Easy navigation among edit boxes while entering values.
Rapid calculations.
Moreover the App is optimized to reduce user tabbing for calculations. [Save time].
No need of internet connections to calculate, save & load calculations. So very convenient tool to use in any environments.

We would like to hear kudos and comments from you to upgrade the app with more convenient calculators and features in future. So please leave your likes and comments at
http://www.facebook.com/pages/Electronics-Filters-Calc/294767267305271

iPhone Screenshots

(click to enlarge)

Electronics Filters Calc screenshot 1 Electronics Filters Calc screenshot 2 Electronics Filters Calc screenshot 3 Electronics Filters Calc screenshot 4 Electronics Filters Calc screenshot 5

App Changes

  • October 12, 2012 Initial release
  • October 25, 2012 Price increase: $0.99 -> $1.99
  • November 01, 2012 Price increase: $1.99 -> $2.99
  • November 07, 2012 Price decrease: $2.99 -> $1.99
  • November 21, 2012 Price decrease: $1.99 -> $0.99
  • November 30, 2012 Price increase: $0.99 -> $2.99
  • December 18, 2012 Price decrease: $2.99 -> $1.99
  • December 20, 2012 New version 1.1.1
  • December 20, 2012 Price decrease: $1.99 -> $0.99
  • October 09, 2013 Price decrease: $0.99 -> FREE!
  • March 19, 2014 Price increase: FREE! -> $0.99

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