Bandvalue

Select the names. Inspect the arithmetic.

Read a band code
one role at a time.

Decode a manually chosen four or five-band sequence. See its significant digits, multiplier, nominal resistance and arithmetic interval from the marked tolerance.

Named reference tableExact decimal valuesNo camera or measurement

1. Choose the ordered bands

Use the color names in the order you intend to read them. This tool does not choose the physical reading direction or identify a component. Screen swatches are approximate illustrations.

A specific reference, not a universal identifier

This is the declared Vishay four/five-band convention. Gray tolerance means 0.05% in this table. Leading black, absent tolerance, six-band and special marking families are outside this tool.

Read the model and supported subset

2. Inspect the selected interpretation

Marked value is not a measurement

A supported selection gives a mathematical interpretation of a named reference table. It does not prove the component's code family, orientation, actual resistance, availability or power rating. It does not recommend a circuit configuration.

Understand the roles and formula or check original worked examples, including fractional multipliers and the declared gray tolerance.