Enter a 3-digit capacitor code and tolerance code to decode your component's capacitance value in pF, nF, and µF — or go the other way and enter a capacitance value with its unit to generate the corresponding capacitor code and tolerance.
Capacitance Value
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Capacitor Code
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Tolerance
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Value in nF
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Value in µF
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Ceramic capacitors use a 3-digit code system where the first two digits represent the significant figures and the third digit is the multiplier (number of zeros). For example, 104 means 10 followed by 4 zeros = 100,000 pF = 100 nF.
Tolerance codes indicate the accuracy of the capacitor value. Common codes include: J (±5%), K (±10%), M (±20%), F (±1%), G (±2%). For small values under 10pF, C (±0.25pF) and D (±0.5pF) are used.
The conversion is: 1 µF = 1,000 nF = 1,000,000 pF. To convert pF to nF, divide by 1,000. To convert nF to µF, divide by 1,000. Going the other way, multiply by 1,000 for each step up.
This calculator works for standard 3-digit ceramic capacitor codes. Some capacitors may have additional letters indicating voltage rating or temperature coefficient. Focus on the 3-digit number for value calculation.
Due to their tiny size, ceramic capacitors don't have enough space to print the full capacitance value. The 3-digit code system allows manufacturers to mark the value in a compact format while maintaining readability.
This calculator is specifically for ceramic capacitors with 3-digit codes. Electrolytic capacitors typically have their values printed directly, while film capacitors may use different marking systems or color codes.
Ceramic capacitor accuracy depends on the tolerance code. Standard tolerances range from ±1% for precision applications to ±20% for general purpose use. The tolerance code letter indicates the expected variation from the nominal value.