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Calculator for the Electromagnetic Spectrum
Convert wave length, frequency and energy
| Please enter one value and press the according = button. | ||
| Round to decimal places | ||
| Wave length λ: | * | |
| Frequency f: | * | |
| Photon energy Ep: | * | |
| Energy E: | * | |
| Temperature at λmax: | ||
| Photons per joule: | ||
| Type: | ||
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Formulas:
Planck constant h = 6.62606957*10-34 J*s
Speed of light c = 299792458 m/s
c = λ*f
Elektron-volt: 1 eV = 1.602176565*10-19 J
E = h*c / λ
Ep = E / (1.602176565*10-19)
T at λmax = 2,89776829 nm * Kelvin / λ (Wien's displacement law)
T at λmax is the temperature of a black body, whose radiation has a maximum at λ.
Photons per joule = 1 / (1.602176565*10-19 * Ep)
Table:
| Type | Subtype | λ | f | Ep | E |
|---|---|---|---|---|---|
| Low frequency | ELF, extremely low frequency | > 10 Mm | < 30 Hz | < 124 feV | < 1.99*10-32 J |
| SLF, super low frequency | 10 Mm - 1 Mm | 30 Hz - 300 Hz | 124 feV - 1.24 peV | 1.99*10-32 J - 1.99*10-31 J | |
| ULF, ultra low frequency | 1 Mm - 100 km | 300 Hz - 3 kHz | 1.24 peV - 12.4 peV | 1.99*10-31 J - 1.99*10-30 J | |
| VLF, very low frequency | 100 km - 10 km | 3 kHz - 30 kHz | 12.4 peV - 124 peV | 1.99*10-30 J - 1.99*10-29 J | |
| Radio waves | LF, low frequency | 10 km - 650 m | 30 kHz - 461 kHz | 124 peV - 1.91 neV | 1.99*10-29 J - 3.06*10-28 J |
| MF, mid frequency | 650 m - 180 m | 461 kHz - 1.67 MHz | 1.91 neV - 6.89 neV | 3.06*10-28 J - 1.1*10-27 J | |
| HF, high frequency | 180 m - 10 m | 1.67 MHz - 30 MHz | 6.89 neV - 124 neV | 1.1*10-27 J - 1.99*10-26 J | |
| VHF, very high frequency | 10 m - 1 m | 30 MHz - 300 MHz | 124 neV - 1.24 μeV | 1.99*10-26 J - 1.99*10-25 J | |
| Microwaves | UHF, ultra high frequency decimeter band | 1 m - 10 cm | 300 MHz - 3 GHz | 1.24 μeV - 12.4 μeV | 1.99*10-25 J - 2 yJ |
| SHF, super high frequency centimeter band | 10 cm - 1 cm | 3 GHz - 30 GHz | 12.4 μeV - 124 μeV | 1.99 yJ - 19.9 yJ | |
| EHF, extremely high frequency millimeter band | 1 cm - 1 mm | 30 GHz - 300 GHz | 124 μeV - 1.24 meV | 19.9 yJ - 199 yJ | |
| Terahertz radiation | Submillimeter radiation | 1 mm - 100 μm | 300 GHz - 3 THz | 1.24 meV - 12.4 meV | 199 yJ - 1.99 zJ |
| Infrared radiation | Far infrared | 100 μm - 50 μm | 3 THz - 6 THz | 12.4 meV - 24.8 meV | 1.99 zJ - 3.97 zJ |
| Mid infrared | 50 μm - 3 μm | 6 THz - 100 THz | 24.8 meV - 413 meV | 3.97 zJ - 66.2 zJ | |
| Near infrared | 3 μm - 780 nm | 100 THz - 384 THz | 413 meV - 1.59 eV | 66.2 zJ - 255 zJ | |
| Visible light | Red | 780 nm - 640 nm | 384 THz - 468 THz | 1.59 eV - 1.94 eV | 255 zJ - 310 zJ |
| Orange | 640 nm - 600 nm | 468 THz - 500 THz | 1.94 eV - 2.07 eV | 310 zJ - 331 zJ | |
| Yellow | 600 nm - 570 nm | 500 THz - 526 THz | 2.07 eV - 2.18 | 331 zJ - 349 zJ | |
| Green | 570 nm - 490 nm | 526 THz - 612 THz | 2.18 eV - 2.53 eV | 349 zJ - 405 zJ | |
| Blue | 490 nm - 430 nm | 612 THz - 697 THz | 2.53 eV - 2.88 eV | 405 zJ - 462 zJ | |
| Violet | 430 nm - 380 nm | 697 THz - 789 THz | 2.88 eV - 3.26 eV | 462 zJ - 523 zJ | |
| Ultraviolet | Near UV, UVA | 380 nm - 315 nm | 789 THz - 952 THz | 3.26 eV - 3.94 eV | 523 zJ - 631 zJ |
| Near UV, UVB | 315 nm - 280 nm | 952 THz - 1.07 PHz | 3.94 eV - 4.43 eV | 631 zJ - 709 zJ | |
| Near UV, UVC | 280 nm - 200 nm | 1.07 PHz - 1.5 PHz | 4.43 eV - 6.2 eV | 709 zJ - 993 zJ | |
| Far ultraviolet | 200 nm - 50 nm | 1.5 PHz - 6 PHz | 6.2 eV - 24.8 eV | 993 zJ - 3.97 aJ | |
| XUV, EUV, extreme UV | 50 nm - 1 nm | 6 PHz - 300 PHz | 24.8 eV - 1.24 keV | 3.97 aJ - 199 aJ | |
| X-radiation | Soft X-rays, SX | 1 nm - 100 pm | 300 PHz - 3 EHz | 1.24 keV - 12.4 keV | 199 aJ - 1.99 fJ |
| Hard X-rays, HX | 100 pm - 10 pm | 3 EHz - 30 EHz | 12.4 keV - 124 keV | 1.99 fJ - 19.9 fJ | |
| Gamma radiation | γ | < 10 pm | > 30 EHz | > 124 keV | > 19.9 fJ |
| Cosmic γ-rays | < 4 pm | > 75 EHz | > 310 keV | > 49.7 fJ |
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