Resistor Standard Values

Preferred number series for resistors according IEC 60063. Calculate voltage, resistance, and current using Ohm's Law.

Resistor Standard Values

Preferred number series for resistors according IEC 60063 are indicated below.

Resistors with 10% tolerance

Standard values: 10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68, 82 (ohm, kohm, and higher decades)

Resistors with 5% tolerance

Standard values: 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 39, 43, 47, 51, 56, 62, 68, 75, 82, 91 (ohm, kohm, and higher decades)

Ohm's Law

Ohm's law can be expressed as:

U = R × I (Voltage = Resistance × Current)

or

R = U / I (Resistance = Voltage / Current)

Calculator

Inputs

Results

Calculated Resistance-- Ω
Calculated Voltage-- V
Calculated Current-- A
Power (P)-- W
Tolerance10% Standard Values5% Standard Values
Base Series10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68, 8210, 11, 12, 13, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 39, 43, 47, 51, 56, 62, 68, 75, 82, 91
Example (Ω)10Ω, 12Ω, 15Ω, 18Ω, 22Ω, 27Ω, 33Ω, 39Ω, 47Ω, 56Ω, 68Ω, 82Ω10Ω, 11Ω, 12Ω, 13Ω, 15Ω, 16Ω, 18Ω, 20Ω, 22Ω, 24Ω, 27Ω, 30Ω, 33Ω, 36Ω, 39Ω, 43Ω, 47Ω, 51Ω, 56Ω, 62Ω, 68Ω, 75Ω, 82Ω, 91Ω
Example (kΩ)10kΩ, 12kΩ, 15kΩ, 18kΩ, 22kΩ, 27kΩ, 33kΩ, 39kΩ, 47kΩ, 56kΩ, 68kΩ, 82kΩ10kΩ, 11kΩ, 12kΩ, 13kΩ, 15kΩ, 16kΩ, 18kΩ, 20kΩ, 22kΩ, 24kΩ, 27kΩ, 30kΩ, 33kΩ, 36kΩ, 39kΩ, 43kΩ, 47kΩ, 51kΩ, 56kΩ, 62kΩ, 68kΩ, 75kΩ, 82kΩ, 91kΩ