Resistor color coding

Resistor color coding calculator – is a convenient online tool that helps determine the resistor resistance by color coding and establish the color sequence by nominal parameter.

The program is an application based on data from the standard table of resistor color codes. As these elements differ in resistance limit, power, and tolerance, they are marked with different color combinations, and the type of resistor can be determined by correctly decoding the data.

Place the resistor so that the rings are shifted to the left edge or the wide band is on the left, and select the corresponding colors in the form.
The calculator allows calculating the resistance and tolerance of resistors with color coding in the form of 4 or 5 colored rings.

1 kOhm = 1000 Ohm,
1 MOhm = 1000 kOhm,
1 GOhm = 1000 MOhm.

There are standard series of resistors, each distinguished by a specific resistance value, dissipated power, and permissible tolerance. On any modern resistance, there are color rings. They can have various colors, depending on which specific indicators of the electronic component are defined. But there are also digital and letter designations.

For example: 10 M (10 megaohm), 5.3 K (5.3 kiloohm); 570 (570 Ohm); K48 (480 Ohm).

When using an alphanumeric code, the resistance of resistors is indicated by numbers with the unit of measurement. It's customary to designate with letters: R - ohm, K - kiloohm, M - megaohm.

If the resistance value is expressed as a whole number, the unit of measurement is placed after the number:

16R - 16 Ohm,
38K - 38 kOhm,
10M - 10 MOhm.

If the resistance is expressed as a decimal fraction less than one, then instead of zero whole and a comma, the unit of measurement is placed before the number:

R19 - 0.19 Ohm,
K47 - 0.47 kOhm,
M78 - 0.78 MOhm.

If the resistance is expressed as a whole number with a decimal fraction, then the unit of measurement is placed after the whole number instead of a comma:

5R2 - 5.2 Ohm,
ZK4 - 3.4 kOhm,
1M1 - 1.1 MOhm.