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# Frequency-wavelength relations for free space

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Frequency-wavelength relations for free space

## Band Name

**Cosmic rays****Frequency Range**: Greater that 10^{+20}**Free Space Wavelength, m**: Less than 10^{-12}

**Gamma rays****Frequency Range**: 3x 10^{+20}to 3x 10^{+19}**Free Space Wavelength, m**: 10^{-12}to 10^{-11}

**X-rays****Frequency Range**: 3x 10^{+19}to 3x 10^{+18}**Free Space Wavelength, m**: 10^{-11}to 10^{-10}

**Ultraviolet****Frequency Range**: 3x 10^{+18}to 7x 10^{+14}**Free Space Wavelength, m**:10^{-10}to 4.3x 10^{-7}

**Visible light****Frequency Range**: 7x 10^{+14}to 4x 10^{+14}**Free Space Wavelength, m**:4.3x 10^{-7}to 7.5x 10^{-7}

**Infrared****Frequency Range**: 4x 10^{+14}to 300 GHz**Free Space Wavelength, m**:7.5x 10^{-7}to 10^{-3}

**EHF (extra high)****Frequency Range**: 300 GHz to 30 GHz**Free Space Wavelength, m**:10^{-3}to 10^{-2}

**SHF (super high)****Frequency Range**: 30 GHz to 3 GHz**Free Space Wavelength, m**:10^{-2}to 10^{-1}

**UHF (ultra high)****Frequency Range**: 3 GHz to 300 MHz**Free Space Wavelength, m**:10^{-1}to 1

**VHF (very high)****Frequency Range**: 300 MHz to 30 MHz**Free Space Wavelength, m**: 1 to 10

**HF (high)****Frequency Range**: 30 MHz to 3 MHz**Free Space Wavelength, m**: 10 to 100

**MF (middle)****Frequency Range**: 3 MHz to 300 kHz**Free Space Wavelength, m**: 10^{+2}to 10^{+3}

**LF (low)****Frequency Range**: 300 kHz to 30 kHz**Free Space Wavelength, m**: 10^{+3}to 10^{+4}

**VLF (very low)****Frequency Range**: 30 kHz to 3 kHz**Free Space Wavelength, m**: 10^{+4}to 10^{+5}

**ULF (ultra low)****Frequency Range**: Less than 3 kHz**Free Space Wavelength, m**: Greater than 10^{+5}