Interactive Engineering Tool
Capacitor Code Calculator & Unit Converter
Instantly decode 3-digit ceramic and film capacitor markings and convert seamlessly between Picofarads (pF), Nanofarads (nF), and Microfarads (µF).
104
Ceramic Disc Preview
Printed on disc or SMD body
1 pF = 10⁻¹² F
1 nF = 1,000 pF
1 µF = 1,000 nF
Quick Values:
Active Code
104
Picofarads (pF)
100,000 pF
Nanofarads (nF)
100 nF
Microfarads (µF)
0.1 µF
Common Capacitor EIA Codes
| Code | pF | nF | µF |
|---|---|---|---|
101 |
100 pF | 0.1 nF | 0.0001 µF |
102 |
1,000 pF | 1 nF | 0.001 µF |
103 |
10,000 pF | 10 nF | 0.01 µF |
223 |
22,000 pF | 22 nF | 0.022 µF |
473 |
47,000 pF | 47 nF | 0.047 µF |
104 |
100,000 pF | 100 nF | 0.1 µF |
224 |
220,000 pF | 220 nF | 0.22 µF |
105 |
1,000,000 pF | 1,000 nF | 1.0 µF |
How Capacitor Codes Work
Due to limited physical package surface on ceramic discs, film capacitors, and surface mount (SMD) components, values are marked using a 3-digit notation:
- 1st & 2nd Digits: Significant figures (e.g. for
104, significant value is10). - 3rd Digit: Multiplier as power of 10 in picofarads (pF). For
104:10 × 10⁴ = 100,000 pF. - Units: 100,000 pF = 100 nF = 0.1 µF.
- 2-Digit Codes: Capacitors marked with 1 or 2 digits (e.g.
22) indicate direct capacitance in picofarads (22 pF).
