← Back to Reference Tools

Ceramic Capacitor Code Calculator

Decode 3-digit capacitor markings to capacitance values

104
100 nF
100,000 pF • Tolerance: ±10%
100,000
pF
100
nF
0.1
μF

Common Codes

Click to try:

100
10 pF
101
100 pF
102
1 nF
103
10 nF
104
100 nF
105
1 μF
220
22 pF
471
470 pF
472
4.7 nF
473
47 nF
474
470 nF
225
2.2 μF

How It Works

The 3-digit code represents capacitance in picofarads (pF):

Example: 104 = 10 × 104 = 100,000 pF = 100 nF = 0.1 μF

Multiplier Reference

3rd Digit Multiplier Example Code Value
0×110010 pF
1×10101100 pF
2×1001021,000 pF (1 nF)
3×1,00010310,000 pF (10 nF)
4×10,000104100,000 pF (100 nF)
5×100,0001051,000,000 pF (1 μF)
6×1,000,00010610 μF
7×10,000,000107100 μF
8×0.011580.15 pF
9×0.11591.5 pF

Tolerance Codes

Letter Tolerance Typical Use
B±0.1 pFPrecision (small values)
C±0.25 pFPrecision (small values)
D±0.5 pFPrecision (small values)
F±1%Precision
G±2%Precision
J±5%General purpose
K±10%General purpose (most common)
M±20%Non-critical
Z+80% / -20%Decoupling