Here are a few websites for calculating resistance, capacitance, and inductance color values from component codes:
Resistance (R)
www.electronics2000.co.uk (R)
www.allaboutcircuits.com
resistorcolorcodecalc.com
www.digikey.com
Capacitance (C)
www.electronics2000.co.uk (C)
circuitdigest.com
Inductance (L)
www.electronics2000.co.uk (L)