Capacitor Code Calculator

Simplify your electronics projects with our free Capacitor Code Calculator. Reading the cryptic 3-digit markings on ceramic, film, and tantalum capacitors can be confusing, but this tool makes it effortless. Simply enter the code found on your component (such as 103, 104, or 472), and our calculator will instantly decode it into standard capacitance units: picofarads (pF), nanofarads (nF), and microfarads (µF). Whether you are debugging a circuit or sorting components, use this tool to ensure you have the exact value you need.

Decode capacitor markings instantly

Enter Capacitor Code

Auto Detect Numeric EIA-198 Letter Code

Capacitance

--- pF

--- nF

--- µF

Tolerance

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Voltage Rating

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Temp. Coefficient

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Reverse Calculator

Convert value to code

Value

Unit

Tolerance (optional)

Generated Code:

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Quick Reference Guide

3-Digit Format: First two digits are significant figures, third digit is the multiplier (number of zeros).

104 = 10 × 10⁴ = 100,000 pF = 0.1 µF
223 = 22 × 10³ = 22,000 pF = 22 nF
475 = 47 × 10⁵ = 4,700,000 pF = 4.7 µF

2-Digit Format: Direct value in picofarads.

47 = 47 pF
22 = 22 pF

Code	Tolerance
B	±0.1 pF
C	±0.25 pF
D	±0.5 pF
F	±1%
G	±2%
J	±5%
K	±10%
M	±20%
Z	+80%, -20%

Code	Voltage
e	2.5V
G	4V
j	6.3V
A	10V
C	16V
D	20V
E	25V
V	35V
H	50V
J	63V

Format: Letter (value) + Number (multiplier)

Letter represents the capacitance value, number is the power of 10 multiplier.

A5 = 1.0 × 10⁵ = 100,000 pF = 0.1 µF
C6 = 1.5 × 10⁶ = 1,500,000 pF = 1.5 µF