3 band resistor calculator. The first two bands represent significant digits, and the third band represents the multiplier (power of 10). This resistor calculator converts the ohm value and tolerance based on resistor color codes and determines the resistances of resistors in parallel or series. Easy to use, instant results, and follows IEC 60062 standards. Simulating Resistor Networks If you’re simulating complex resistor networks for advanced projects, a resistor calculator can be invaluable. Our 3-band resistor color code calculator provides quick and easy resistance calculations for the most basic resistor type. Aug 3, 2025 ยท This is a free, easy-to-use tool to quickly find the resistance value of 3-band, 4-band, 5-band, and 6-band resistors using their colour bands. 3-band resistors are the simplest and most cost-effective option, featuring two significant digits and a multiplier with standard ±20% tolerance. Tool to compute resistor color code. Enter the value, select the multiplier and the precision or use the tool on the left to display the color bands. Calculate resistor values from color codes for 3, 4, 5, and 6 band resistors. hb4ctshqdrwxcfispaw3d97gbkjg5ec7itwl7q9z0hhxvclyrma