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Calcimator

Wavelength & Frequency Calculator

Convert between wavelength and frequency. Calculate photon energy and identify the electromagnetic spectrum band.

Convert

Results

Wavelength
12.49 cm
Frequency
2.4 GHz
Photon Energy (J)
1.590e-24
Energy (eV)
9.927e-6
EM Spectrum Band
Microwave
How to Use This Calculator
  1. Select conversion direction: frequency to wavelength or wavelength to frequency.
  2. Enter the known value and select the appropriate unit (Hz, kHz, MHz, GHz or nm, um, mm, m).
  3. Review the calculated wavelength or frequency and the corresponding photon energy.
  4. Use the energy in eV to classify the radiation type (radio, microwave, infrared, visible, UV, X-ray).
  5. Remember: wavelength = c / frequency, where c = 3e8 m/s in vacuum.

What each input means

Convert From
Calculation mode to use.
Value
The input value.
Unit
Measurement system to use.

How this is calculated

Formula

c = λf, E = hf

Worked example, using the default values

  1. Identify Input Parameters
    Convert From = 0, Value = 2400, Unit = 2 = 3 input(s) provided
  2. Calculate Wavelength
    Wavelength = wavelengthDisplay
    12.49 cm = 12.49 cm
  3. Calculate Frequency
    Frequency = frequencyDisplay
    2.4 GHz = 2.4 GHz
  4. Calculate Photon Energy
    Photon Energy = energy.toExponential(3)
    1.590e-24 = 1.590e-24

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