RedCrab online calculator for calculating electrical values

Alternating voltage values Alternating voltage and time Frequency and wavelength Alternating voltage value and angle Frequency and periodic time RMS values of AC voltage

Inductance Reactance of a coil Cutoff frequency R/L Differentiator R/L Highpass filter R/L Lowpass filter R/L Series circuit R/L Parallel circuit R/L Transformer

Resonant frequency f0 calculator Resistors-capacitors-inductors series circuit Resistors-capacitors-inductors parallel circuit Resonance of RCL parallel circuit Resonance of RCL series circuit

LED resistor Zener diode resistor (variable) Zener diode resistor (fix)

Loudspeaker crossover 6 dB Loudspeaker crossover 12 dB Loudspeaker crossover 18 dB