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E-Formulas app for iPhone and iPad


4.0 ( 5130 ratings )
Utilities Education
Developer: Formula Sensei
6.99 USD
Current version: 1.4, last update: 7 years ago
First release : 15 Nov 2008
App size: 551.88 Kb

E-Formulas 1.4 introduces our most requested feature -- calculating resistance and capacitance in series and parallel.

Easily solve any of the variables in 22 of the most useful formulas in electronics including the first Voltage Drop calculator in the App Store. Over 70+ formula variations in total. Standard international units are fully supported and results are automatically computed using unit picker control.

FEATURES
• Includes custom numeric keypad for rapid and accurate entry of numbers
• Select specific unit multipliers for each variable
• Graphic representation of each formula for easy identification
• Each formula includes a descriptive overview and link to Wikipedia for more in-depth information
• Shake to clear all values

INCLUDED FORMULAS
• Ohms Law
• Power
• Power Dissipation (Current)
• Power Dissipation (Voltage)
• Joules Law
• Voltage Drop
• Capacitive Reactance
• Inductive Reactance
• Impedance
• Resonance
• RC Time Constant
• RL Time Constant
• Power Gain
• Voltage Gain
• Frequency Wavelength
• AC Peak Voltage
• Parallel Resistance
• Series Resistance
• Parallel Capacitance
• Series Capacitance
• Parallel Inductance
• Series Inductance

INCLUDED BASE UNITS
• Ohms
• Amps
• Volts
• Watts
• Farads
• Henrys
• Hertz
• Seconds
• Decibels
• Meters
• Joules
• AWG
• cmil (Circular Mils)
• mm2 (Square Millimeters)

FREE UPDATES
Future versions including additional formulas will be free.

SUPPORT
To request the addition of a new formula, make a suggestion or report a bug please send an email to [email protected]