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Free online circuit calculators and simulators

Select a tool below to explore circuit design, analysis, and simulation.

Analog Filter Calculators

Passive Low-Pass Filter
Passive High-Pass Filter
Passive Band-Pass Filter
Passive Band-Reject Filter
Active Low-Pass Filter
Active High-Pass Filter
Active Band-Pass Filter
Active Band-Reject Filter
Sallen-Key Low-Pass Filter
Sallen-Key High-Pass Filter
Sallen-Key Band-Pass Filter
Sallen-Key Band-Reject Filter
MFB Low-Pass Filter
MFB High-Pass Filter
MFB Band-Pass Filter
MFB Band-Reject Filter

Digital & Mixed Signal Calculators

Power & Energy Calculators

Thermal Calculators

Filter Calculators

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