Capacitor Calculator Plus is designed to give the value of color coded poly capacitors. They come in various shapes and types. Most capacitors actually have the numeric values stamped on them. The capacitor's first and second bands are the significant number bands, the third is the multiplier, followed by the percentage tolerance band and the voltage band. Select the band values from the individual fields. After clicking on Calculate, the calculator will use the selected conditions for all of the bands and try to make a calculation.