Resistor Color Code Calculator

The Resistor Color Code Calculator will calculate the resistance value in Ohms (Ω) for 4-band and 5-band resistors based on the color code on the resistor.

4-Band Resistor Color Code Calculator


Choose resistor color code to calculate resistance value.


Resistor Value: 250 kΩ ± 5%

Note: Tolerance values in % of full resistance range.

Resistance values can be calculated from a 4-band resistor color code as follows:

  • Band 1: First significant figure (left-most digit)
  • Band 2: Second significant figure
  • Band 3: Multiplier (determines order of magnitude)
  • Band 4: Tolerance value (%)

For example, a resistor with a color band pattern of red, green, yellow, gold yields the first digit as 2, the second digit as 5, and a multiplier of 10,000. This produces a resistance value of 25 * 10,000 = 250 kΩ with a ± 5% tolerance.


5-Band Resistor Color Code Calculator


Choose resistor color code to calculate resistance value.


Resistor Value: 12.3 kΩ ± 5%

Note: Tolerance values in % of full resistance range.

Resistance values can be calculated from a 5-band resistor color code as follows:

  • Band 1: First significant figure (left-most digit)
  • Band 2: Second significant figure
  • Band 3: Third significant figure (additional digit of precision)
  • Band 4: Multiplier (determines order of magnitude)
  • Band 5: Tolerance value (%)

For example, a resistor with a color band pattern of brown, red, orange, red, gold yields the first digit as 1, the second digit as 2, the third digit as 3, and a multiplier of 10,000. This produces a resistance value of 123 * 100 = 12.3 kΩ with a ± 5% tolerance.

About Us

At Wire Size Calculator, we are passionate about helping you navigate the intricacies of wire size calculations. With a team of experts well-versed in 12-volt wire sizing, 3-phase cable configurations, and more, we’re dedicated to simplifying the world of electrical installations. Whether you’re a DIY enthusiast or a professional electrician, our comprehensive wire gauge calculator, hot tub wire size calculator, and other tools are here to assist you in your projects. 

“With decades of experience and a commitment to accuracy, we aim to be your trusted resource for all things wire-related.”

What They Say!

“I found the ‘4 Band Resistor Color Code Calculator’ on this website incredibly helpful. As a beginner in electronics, I often struggled with deciphering resistor color codes. This calculator made the process so much easier. It’s straightforward and precise. I highly recommend it to anyone looking to quickly and accurately calculate resistor values.”

Sarah

“The ‘5 Band Resistor Color Code Calculator’ on this site is a lifesaver for me. As an experienced electronics enthusiast, I need precision in my resistor calculations, and this calculator delivered just that. It’s user-friendly and efficient. This is a valuable tool for both beginners and advanced users. Thanks for making my projects smoother!”

John

“I can’t thank this website enough for its ‘Resistor Color Code Calculator.’ I’ve been using both the 4-band and 5-band calculators, and they’ve saved me countless hours. The accuracy and simplicity of these calculators are outstanding. If you’re serious about electronics or just need a quick resistor value, this is the place to go. It’s a must-have resource!”

Emily

Meet The Experts

_4a60e915-bf59-4502-88d6-a2c9bead0f9f
Samantha Turner

CEO & Founder

Hello there! I’m Samantha, the brains behind WireSizeCalculator. As the CEO and Founder, I’ve always been fascinated by the world of electrical installations. Armed with a degree in Electrical Engineering, I’ve dedicated myself to becoming an expert in this niche. With years of experience, my goal is to make wire size calculations accessible to all. When it comes to this field, you can trust that I’ve got the knowledge and expertise to guide you in the right direction.

Alex
Alex Mitchell

Lead Developer

Meet Alex, our Lead Developer. With a knack for coding and a passion for creating user-friendly tools, he’s the genius behind our wire size calculators. Alex has an impressive track record, having developed several essential tools in this niche. His expertise ensures that our platforms are not only functional but also reliable, making your wire sizing tasks a breeze. With Alex on board, you can be confident that the technical side of our blog is in capable hands.

Olivia
Olivia Reynolds

Content Writer

Olivia is our Content Writer extraordinaire. Her journey in the niche of electrical installations began with a diploma in Electrical Engineering. With a background in the industry, she knows the ins and outs of the field. Her passion lies in translating complex concepts into clear and engaging content. When it comes to writing about electrical insights, Olivia’s expertise shines through. Her dedication and experience ensure that our articles are not only informative but also a pleasure to read.

FAQ

To calculate the resistance value of a resistor, simply enter the colors of the first, second, third, and fourth bands into the 4 Band Resistor Color Code Calculator on our website.

You can access our precise and user-friendly 4 Band Resistor Color Code Calculator on our website, making resistor value calculations a breeze.

The 4 Band Resistor Color Code Calculator simplifies the process of determining resistor values, which is crucial in electronic projects. It’s a handy tool for enthusiasts and professionals alike.

To calculate the resistance value of a resistor, input the colors of the first, second, third, fourth, and fifth bands into our 5 Band Resistor Color Code Calculator on the website.

You can find our accurate and user-friendly 5 Band Resistor Color Code Calculator on our website, providing precise resistor value calculations.

The 5 Band Resistor Color Code Calculator is an invaluable resource for advanced electronics projects, ensuring precision and accuracy in resistor value calculations, available on our website.

The Color Code Resistor Calculator for 5 Band resistors streamlines electronics projects by providing precise resistor value calculations, making it an essential tool available on our website.

Our website hosts a dependable Color Code Resistor Calculator for 5-band resistors, ensuring accurate and easy resistor value calculations.

Our Color Code Resistor Calculator for 5 Band resistors is a trusted resource for accurate resistor value calculations, ensuring that your electronics projects run smoothly and efficiently.

Featured Articles

Explore electrical insights with our experts. Simplifying wire size calculations for you.