Four color ring resistance online calculator

App description

1st ring black brown red orange yellow green blue purple gray white

2nd ring black brown red orange yellow green blue purple gray white

Ring 3 Multiplier Black Brown Red Orange Yellow Green Orchid Purple Gray White Gold Silver

Fourth ring error rate gold %5 silver %10

Resistance: ohm

Error ±: ohm

Usage example

Pronunciation

Example: 4-ring resistance in order: red, yellow, red, gold, read as 2400Ω = 2.4K, error is ± 5%

Example: 4-ring resistance in order: orange, white, red, silver, read as 3900Ω = 3.9K, error is ±10%

Example: 4-ring resistance In order: yellow purple orange silver read as 47000Ω = 47K error is ± 10%

Example: 4-ring resistance In order: orange orange gold and silver, orange orange is 33 multiplied by 10-1=3.9Ω, error is ±10%

Example: The 4-ring resistance is in order: yellow-violet-silver-silver, where yellow-yellow is 47 multiplied by 10-2=0.47Ω, and the error is ±10%.

Note

From the above, it is known that reading the third color ring is gold or silver, because it is a negative multiplication, and the resistance value is generally 0.1-9.9 Ω.

Regarding the error rate: the number of errors in the software must be multiplied by 100. If the calculated error is 0.02, multiply by 100=2%.