πŸŽ›οΈ
πŸŽ“

Learn the Resistor Color Code

Practice reading bands and check your answers while learning electronics.

Nid oes angen mewngofnodi
1 kΞ©
Β±5% tolerance
Range: 950 Ξ© – 1.05 kΞ©

Digit 1

Digit 2

Multiplier

Tolerance

πŸ’‘ Read bands from the end with the tolerance band (often gold or silver) on the right. 4-band resistors use two significant digits; 5- and 6-band use three for tighter precision.

Students tips

πŸŽ“

The classic mnemonic "Big Boys Race Our Young Girls But Violet Generally Wins" maps to black-brown-red-orange-yellow-green-blue-violet-grey-white = 0-9.

πŸ’‘

Set the bands here, read off the value, then verify β€” repetition builds the memory fast.

🎯

The tolerance range shown tells you the real min/max resistance, which matters in voltage-divider math.

Sut Mae'n Gweithio

1
Ewch i mewn
Enter your data into the tool above. Everything stays local to your browser.
2
Proses
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Lawrlwythwch
Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Pam defnyddio ein un ni?

βœ“Hollol rhad ac am ddim - dim costau cudd, byth
βœ“Nid oes angen cyfrif, e-bost na mewngofnodi
βœ“Nid yw ffeiliau byth yn gadael eich dyfais
βœ“Dim cyfyngiadau maint ffeil o gwbl
βœ“Dim dyfrnodau ar unrhyw allbwn

Also check out…

Cwestiynau Cyffredin