Pick Resistors for Arduino & LEDs

Identify the resistor you need for LED current limiting and pull-ups.

Tidak perlu login

1 kΩ

±5% tolerance

Range: 950 Ω – 1.05 kΩ

Digit 1

Digit 2

Multiplier

Tolerance

💡 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.

Arduino tips

🔌

A typical LED current-limiting resistor is 220Ω-330Ω (red-red-brown or orange-orange-brown).

💡

Pull-up/pull-down resistors for buttons are usually 10kΩ (brown-black-orange).

🎯

Found a loose resistor in your kit? Match its bands here to know exactly what it is before soldering.

Cara kerja

Masukkan

Enter your data into the tool above. Everything stays local to your browser.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Unduh

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Mengapa milik kami?

✓Sepenuhnya gratis — tidak ada biaya tersembunyi, selamanya

✓Tidak perlu akun, email, atau login

✓File tidak pernah meninggalkan perangkat Anda

✓Tidak ada batasan ukuran file sama sekali

✓Tidak ada tanda air pada output apa pun

Also check out…

🎛️

Read 4-Band Resistor Colors

Decode the most common resistor type: two digits,

🔬

Decode 5-Band Precision Resistors

Read three-significant-digit resistors used in pre

🌡️

Decode 6-Band Resistors

Read precision resistors that also specify a tempe

🎓

Learn the Resistor Color Code

Practice reading bands and check your answers whil

Pertanyaan yang sering diajukan

Back to Resistor Color Code Calculator