Electromagnetic Spectrum Reference Chart

Frequency / Wavelength
<3 MHz
>100mm

Radio

[Expand]
3 Hz
100million m

Extremely low frequency ELF

30 Hz
10million m

Super low frequency SLF

300 Hz
1000 km

Ultra low frequency ULF

3 kHz
100 km

Very low frequency VLF

30 kHz
10 km

Low frequency LF

300 kHz
1000 m

Medium frequency MF

550 to 1600kHz: UK AM Radio stations.

3 MHz
100 m

High frequency HF

30 MHz
10 m

Very high frequency VHF

27MHz: Radio-controlled toys.

88 to 108MHz: UK VHF Radio stations.

300 MHz
1 m

Ultra high frequency UHF

470 to 854MHz: UK TV Stations

3 MHz
100mm

Microwave

[Expand]
30 MHz
10 m

Very high frequency VHF

300 MHz
1 m

Ultra high frequency UHF

3 GHz
10 cm

Super high frequency SHF

30 GHz
10 mm

Extremely high frequency EHF

0.3 GHz
1mm

Infrared

[Expand]
3000 GHz
20,000nm

Far Infrared

15000 MHz
700nm

Near Infrared

400 GHz
700nm

Visible Light

[Expand]
430 THz
690nm

Red

   
595nm

Orange

   
560nm

Yellow

   
510nm

Green

   
455nm

Blue

   
440nm

Indigo

750 THz
400nm

Violet

7.5 GHz
400nm

Ultraviolet (UV)

[Expand]
940 THz
320 nm

UV-A

1010 THz
280 nm

UV-B

3000 THz
100 nm

UV-C

30 THz
10nm

X-Rays

[Expand]
1017 Hz
1nm

Soft X-Ray

1020 Hz
0.1nm

Hard X-Ray

1024 Hz
10┬Ám

Gamma-Rays

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