If you are a beginner and wish to learn how you can calculate a resistor value with the help of a chart then visit this website by Moyer eletronics dot com. There are lots of electronic infomation too. Once you have downloaded, you can open the resistor calculator and key in the color codes and the answer will be immediately shown to you. You can key in up to six color codes! If possible, don’t depends too much on the resistor calculator chart as this will not help you in the long run. Have you seen any professional electronic repairer look at a chart when comes to identifying resistor value? Use the chart as a form to equip you in the beginning and once you are able to memorize the resistor color codes, stop using it!