Guide for reading resistors (from http://www.elexp.com/)

      (the value of the resistor below is 5(green)6(blue)0000(four zeros for yellow), i.e. 560000 Ohm or 560 kOhm.

Resistor Values

R = 1 Ohm
k = 1000 Ohm
M = 1000000 Ohm

[Ohm should be set as uppercase Greek omega (W) which may or may not show correctly in your browser.]

 

Available values for a 20% tolerance resistors: There is six values per each decade, the adjacent values have the ratio approximately the sixth root of ten (= 1.467). The resistor ranges can easily be extrapolated into ranges not shown. For example, the 100k range can be determined by multiplying the values in the 1k range by 100.
      1k, 1.5k, 2.2k 3.3k, 4.7k, 6.8k.....10k, 15k, 22k 33k, 47k, 68k .....

Resistor values at 10% tolerance
10k, 12k, 15k, 18k, 22k, 27k, 33k, 39k, 47k, 56k, 68k, 82k
(Twelve values per decade, with ratio equal approximately to the twelfth root of ten)

Resistor values at 5% tolerance
1k, 1.1k, 1.2k, 1.3k, 1.5k, 1.6k, 1.8k, 2.0k, 2.2k, 2.4k, 2.7k, 3.0k, 3.3k, 3.6k, 3.9k, 4.3k, 4.7k, 5.1k, 5.6k, 6.2k, 6.8k, 7.5k, 8.2k, 9.1k
(Twenty-four values per decade, with ratio equal approximately to the twenty-fourth root of ten)

[Petr Vanýsek, 23 January 2007]