Resistor Color Calculator app for iPhone and iPad

4.6 ( 7776 ratings )

Utilities Education
Developer: michael lawson

Free

Current version: 1.1, last update: 8 years ago
First release : 02 Nov 2014
App size: 1.78 Mb

This app allows you to calculate the value and the tolerance of a standard 4 band resistor, along with a visualisation to check that the color code you have entered is correct.

Also included is an Ohms law calculator, to allow you to calculate the missing value, given two values of voltage, current or resistance.