# Frequency, angular frequency, wavelenght, period

To use the calculator you need to enter exactly one of the four values and the calculator will compute all the others (if it is mathematically possible). For example: you can enter the frequency f (don't forget to choose the proper unit), select the units for the results and click [Compute others] button (the one close to the frequency field) and the calculator will compute the period, wavelength and angular frequency.

[frequency]
f =

[angular frequency]
ω =

[wavelength]
λ =

[period]
t =

automatically select units

resistors in parallel
capacitors in series
inductances in parallel
LC resonance circuit
single-layer air-cored coil
circular loop coil
square loop coil
frequency,wavelength,period
three-digit capacitor markings
resistor codes (4 bands)
resistor codes (5 bands)
choke/inductor color codes
555 astable
555 monostable
match standard Ex value
combine standard E6, E12 & E24 values
LM317 voltage regulator
dBm ⇆ mW converter
mm ⇆ in converter
resistance of a wire
Ohm's law
dropping resistor for 'P' tubes
dropping capacitor for 'P' tubes
dropping resistor for 'U' tubes
dropping capacitor for 'U' tubes
line-of-sight
dropping resistor for LEDs
Y-Δ transform
Y-Δ transform (capacitances)
parabolic antenna gain
AWG converter

[ekalk]© Sławek Wernikowski, 2012-2022. Set of useful interactive calculators for electronics constructors and hams.

[3.35 2020-02-02][]