Standard Resistor and Capacitor Values Calculator

What are Standard Resistor and Capacitor Values?

Standard resistor and capacitor values are predetermined values that electronic components are manufactured in. These values are standardized to make component selection and circuit design easier and more consistent.

E-series

The E-series is a system of preferred numbers used to define standard resistor and capacitor values. Common E-series include:

• E12: 12 values per decade, ±10% tolerance
• E24: 24 values per decade, ±5% tolerance
• E48: 48 values per decade, ±2% tolerance
• E96: 96 values per decade, ±1% tolerance

How to Use This Calculator

1. Select the component type (resistor or capacitor)
2. Enter the desired value
3. Choose the appropriate unit
4. Select the E-series
5. Click "Find Standard Value" to get the nearest standard value and alternatives

This calculator helps you find the closest standard value for your desired resistor or capacitor, making it easier to select components for your electronic projects.