Resistors Chart. This 4r7 resistor has a tolerance of ±10%. To use this tool, simply click on a particular color and number and watch how the actual bands on the resistor illustration change.
The chart below presents the power rating of different resistors and their sizes. Round the results to the proper number of significant figures (three for 1% and 2%, two for 5% and 10%). The third band is a multiplier band.