Kalkulator Resistor

Decode resistor color codes, calculate series and parallel resistance, and find power dissipation. Free, fast, and easy to use.

Menghitung

Choose a calculation type, enter your values or select color bands, and click Calculate Now to get instant results with step-by-step solutions.

Panduan Pengguna Lengkap

Apa itu Resistor?

A resistor is an electrical component that limits or controls the flow of electric current in a circuit. Resistance is measured in ohms (Ω) and is usually shown by colored bands on the resistor body. This tool helps you decode those color bands, combine resistors in series or parallel, and calculate power dissipation — all for free.

All Formulas at a Glance

Kode Warna: R = (digits) × multiplier ± tolerance%

Seri: R_total = R1 + R2 + R3 + …

Paralel: 1/R_total = 1/R1 + 1/R2 + 1/R3 + …

Kekuatan: P = V² / R  |  I = V / R

4 Calculation Types

Kode Warna

Dekode resistansi dari kode warna 4-band, 5-band, atau 6-band pada sebuah resistor.

Resistensi Seri

Calculate total resistance when resistors are connected end to end.

Resistensi Paralel

Calculate total resistance when resistors are connected side by side.

Pembuangan Daya

Temukan berapa banyak daya yang dihamburkan resistor menggunakan tegangan dan resistansi.

Cara Menggunakan Kalkulator Ini

  1. Pilih apa yang ingin Anda hitung — kode warna, seri, paralel, atau pangkat.
  2. Enter resistor values or select color bands.
  3. Pilih satuan jika diperlukan (ohm, kilohm, megaohm).
  4. Click Calculate Now and see your answer with a step-by-step breakdown and chart.

Resistor Color Code Chart

• Black=0, Brown=1, Red=2, Orange=3, Yellow=4

• Green=5, Blue=6, Violet=7, Gray=8, White=9

• Gold multiplier = ×0.1, Silver multiplier = ×0.01

• Toleransi: Coklat ±1%, Merah ±2%, Emas ±5%, Perak ±10%

Quick Examples

• Coklat-Hitam-Merah-Emas = 10 × 100 = 1000 Ω (1 kΩ) ±5%

• Dua buah resistor 100 Ω yang dirangkai seri = 200 Ω

• Dua buah resistor 100 Ω dirangkai paralel = 50 Ω

• 12 V pada 100 Ω = disipasi daya 1,44 W

Catatan Penting

  • All resistance values must be greater than zero.
  • Color bands are read from left to right — the tolerance band is usually gold or silver.
  • Unit conversions are done automatically — just pick your preferred unit.
  • At least two resistors are needed for series and parallel calculations.

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