Henry Ott Consultants

Electromagnetic Compatibility Consulting and Training

Frequency - Wavelength Chart

Frequency Wavelength 1/4 Wavelength 1/20 Wavelength 1/100 Wavelength
1 MHz 300 meters 75 meters 15 meters 3 meters
10 MHz 30 meters 7.5 meters 1.5 meters 30 cm
50 MHZ 6.0 meters 1.5 meters 30 cm 6.0 cm
100 MHz 3.0 meters 0.75 meters 15 cm 3.0 cm
200 MHz 1.5 meters 37.5 cm 7.5 cm 1.5 cm
300 MHz 1.0 meter 25 cm 5.0 cm 1.0 cm
400 MHz 0.75 meters 18.8 cm 3.75 cm 7.5 mm
500 MHz 0.6 meters 15 cm 3.0 cm 6.0 mm
600 MHz 0.5 meters 12.5 cm 2.5 cm 5.0 mm
700 MHz 42.9 cm 10.7 cm 2.15 cm 4.29 mm
800 MHz 37.5 cm 9.38 cm 1.88 cm 3.75 mm
900 MHz 33.3 cm 8.33 cm 1.67 cm 3.33 mm
1.0 GHz 30 cm 7.5 cm 1.5 cm 3.0 mm
1.2 GHz 25 cm 6.25 cm 1.25 cm 2.5 mm
1.4 GHz 21.4 cm 5.36 cm 1.07 cm 2.14 mm
1.6 GHz 18.8 cm 4.7 cm 9.4 mm 1.88 mm
1.8 GHz 16.7 cm 4.18 cm 8.35 mm 1.67 mm
2.0 GHz 15 cm 3.75 cm 7.5 mm 1.5 mm
2.5 GHz 12 cm 3.0 cm 6.0 mm 1.2 mm
3.0 GHz 10 cm 2.5 cm 5.0 mm 1.0 mm
4.0 GHz 7.5 cm 1.88 cm 3.75 mm 0.75 mm
5.0 GHz 6.0 cm 1.5 cm 3.0 mm 0.6 mm
10 GHz 3.0 cm 7.5 mm 1.5 mm 0.3 mm

For 1/2 wavelength, multiple the 1/4 wavelength number by two.
For 1/10 wavelength, multiple the 1/20 wavelength number by two.
For 1/50 wavelength, multiple the 1/100 wavelength number by two.

To convert meters to inches multiply by 39.37.
To convert cm to inches divide by 2.54.
To concert mm to inches divide by 25.4.

© 2000 Henry W. Ott                                                Henry Ott Consultants,  48 Baker Road  Livingston,  NJ  07039  (973) 992-1793


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Henry Ott Consultants
48 Baker Road Livingston, NJ 07039
Phone: 973-992-1793,   FAX: 973-533-1442

February 14, 2001