Electronics
Electronics calculators
Circuit design helpers for voltage, current, impedance, and component sizing.
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11
Calculators built for electronics scenarios.
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Capacitance Calculator
Computes capacitance for parallel plate capacitors.
Current Divider Calculator
Splits current through resistors in a parallel branch.
dB Converter
Converts linear power or voltage ratios to decibels and back.
Electrical Power (P = VI)
Calculates real, apparent, and reactive power for single- or three-phase systems.
Inductance Calculator
Estimates inductance for air-core and ferrite-core coils.
Ohm’s Law Calculator
Solves for voltage, current, or resistance in DC circuits.
Power Factor Calculator
Computes real, reactive, and apparent power with power factor.
RC Time Constant
Finds τ = R·C plus the time to hit 63%, 95%, and 99% charge levels.
Resistor Color Code Calculator
Decodes resistor band colors into resistance and tolerance.
Series/Parallel Resistors
Equivalent resistance calculator plus branch count at a glance.
Voltage Divider Calculator
Computes output voltage for resistor dividers with load awareness.