How to solve resistors resistance?

Three-band Resistor

Three Band resistor

To solve a three-band resistor:

The first band shows the first number and the second band shows the second number. In the picture above the first digit is 1 and the second digit is 0. Finally, the third band is the multiplier. So resistors resistance is,

10x1K=10x1000=10000Ω.

Four and Five bands resistor

Four and Five Band resistor

To solve a Four band resistor:

The first band shows the first number and the second band shows the second number. In the picture above the first digit is 5 and the second digit is 6. The third band is the multiplier. Finally, the fourth band shows tolerance(Tolerance is the percentage of error in the resistor's resistance, or how much more or less you can expect a resistor's actual measured resistance to be from its stated resistance). So resistors resistance is,

56x10K±5%=56x10000±5%=560000Ω±5%.

To solve a Five band resistor:

The first band shows the first number, the second band shows the second number the third number shows the third number. In the picture above the first digit is 2, the second digit is 3 and the third digit is 7. The third band is the multiplier. Finally, the fourth band shows tolerance(Tolerance is the percentage of error in the resistor's resistance, or how much more or less you can expect a resistor's actual measured resistance to be from its stated resistance). So resistors resistance is,

237x1K±10%=237x1000±1%=237000Ω±1%.