This online tool calculates the resistance value of a fixed value resistor based on its 5 coloured bands.
5-Band Resistor Colour Code Calculator
- 4 Band Resistor
- 5 Band Resistor
- 6 Band Resistor
This 5-band resistor colour code calculator is another interactive online tool specifically designed to calculate the resistive value of a fixed value 5-band resistor using the coloured bands or stripes on its body. A 5-band resistor is more precise compared to the previous 4-band resistor because of it’s third significant digit. 5-band resistors are generally the most commonly available type of fixed value axial resistor.
5 BAND RESISTOR
INPUTS
| 1st Digit | 2nd Digit | 3rd Digit | Multiplier | Tolerance | |
|---|---|---|---|---|---|
| Black | 0 | 0 | x1 | ||
| Brown | 1 | 1 | 1 | x10 | ± 1% |
| Red | 2 | 2 | 2 | x100 | ± 2% |
| Orange | 3 | 3 | 3 | x1K | |
| Yellow | 4 | 4 | 4 | x10K | |
| Green | 5 | 5 | 5 | x100K | ± 0.5% |
| Blue | 6 | 6 | 6 | x1M | ± 0.25% |
| Violet | 7 | 7 | 7 | x10M | ± 0.10% |
| Grey | 8 | 8 | 8 | x100M | ± 0.05% |
| White | 9 | 9 | 9 | x1G | |
| Gold | ÷ 10 | ± 5% | |||
| Silver | ÷ 100 | ± 10% |
OUTPUT
Resistance: 56.00k ohms
Tolerance: ± 5%
How to Use the 5-band Resistor Colour Code Calculator
To use this online 5-band resistor calculator tool, simply click on a particular colour and number corresponding to your resistor and watch how the individual coloured bands on the resistor illustration above change. For each coloured band, select the matching colour in the table column indicating the band number and its resistance value.
The resulting resistance value is given in the range of Ohm’s, Kilo-ohms (kΩ), and Mega-ohms (MΩ), and is displayed on the resistor image above, together with the resulting tolerance value.
How To Read a 5-band Resistor Colour Code
Each coloured band of a fixed value resistor represents the nominal Ohmic value from the 1st to the 3rd coloured band. The decimal multiplier digit is located on the 4th band, and the 5th band indicates the tolerance of 5-band resistor.
Resistor colour code markings are always read one band at a time starting from the left to the right, with the larger width tolerance band oriented to the right side indicating its tolerance value. Sometimes there is a slight gap between the multiplier and tolerance bands to help you distinguish between the resistors left and right sides.
5-band coloured coded resistors are available in a range of standard resistor values to suit every possible application.
5-band Resistor Markings
By matching the colour of the first band with its associated number in the digit column of the colour chart below the first digit is identified and this represents the first digit of the resistance value.
5-band Resistor Markings
5 Band Resistors Colour Code Table
| Colour | 1st Band | 2nd Band | 3rd Band | Multiplier | Tolerance |
|---|---|---|---|---|---|
| Black | 0 | 0 | 0 | 1Ω | |
| Brown | 1 | 1 | 1 | 10Ω | ± 1% |
| Red | 2 | 2 | 2 | 100Ω | ± 2% |
| Orange | 3 | 3 | 3 | 1KΩ | |
| Yellow | 4 | 4 | 4 | 10KΩ | |
| Green | 5 | 5 | 5 | 100KΩ | ± 0.5% |
| Blue | 6 | 6 | 6 | 1MΩ | ± 0.25% |
| Violet | 7 | 7 | 7 | 10MΩ | ± 0.1% |
| Grey | 8 | 8 | 8 | 100MΩ | |
| White | 9 | 9 | 9 | 1GΩ | |
| Gold | 0.1Ω | ± 5% | |||
| Silver | 0.01Ω | ± 10% |
Resistor Tolerance Value
A Resistors Tolerance value determines the maximum percentage change in resistance between its actual measured resistive value and its nominal fixed value. 5-band resistors are more precise and higher quality metal-film axial resistors with tolerance values of 2% or less compared to wirewound or carbon composition resistors.
For example, a 100Ω metal film resistor with a ±2% (Red) resistance tolerance can have a resistive value anywhere between 98Ω’s (100 – 2%), and 102Ω’s (100 + 2%). Far more accurate than a ±5% (Gold) or ±10% (Silver) carbon composition resistor.
Tolerance value is due to the resistors manufacturing processes and can be expressed in terms of its absolute value Rnominal or, more commonly, in relative value percentage terms Rnominal × 100%. Commonly, tolerance of a 5-band resistor is always expressed as some percentage of its preferred value.
Leave a Reply