Frequency Calculator

Give frequency in Hertz

Frequency Hz KHz MHz GHz THz PHz EHz

Calculate frequency!

Frequency ↔ wavelength

Hertz

Cycles per second

428.27THz

Power of 10

Log₁₀ (a.k.a. 'orders of magnitude')

14.6317

Power of 2

Log₂ (a.k.a. 'octaves')

48.6055

Cycle duration

1 / hertz = time/cycle

2.33fsec

Wavelength

Speed of light = 299 792 km/s

0.7µm

Electro-Magnetic Spectrum

Blue

• Frequency:
  620THz - 670THz
• Wavelength:
  0.45µm - 0.48µm

Cyan

• Frequency:
  600THz - 620THz
• Wavelength:
  0.48µm - 0.5µm

Green

• Frequency:
  530THz - 600THz
• Wavelength:
  0.5µm - 0.57µm

Orange

• Frequency:
  480THz - 510THz
• Wavelength:
  0.59µm - 0.62µm

Red

• Frequency:
  405THz - 480THz
• Wavelength:
  0.62µm - 0.74µm

Violet

• Frequency:
  670THz - 790THz
• Wavelength:
  0.38µm - 0.45µm

Yellow

• Frequency:
  510THz - 530THz
• Wavelength:
  0.57µm - 0.59µm

IR-C	IR-B	IR-A	red	orange	yellow	green	blue	violet	UVA	UVB	UVC
300 GHz – 100 THz	100 THz – 215 THz	215 THz – 430 THz	450 THz	500 THz	515 THz	545 THz	650 THz	750 THz	750THz - 951THz	951THz - 1.07PHz	1.07PHz - 2.5PHz

Examples

Blue (visible light)

Infra-red

AM Radio

FM Radio

UHF TV

Wifi 11a

Wifi 11g

X-ray

References

Infrared

Hertz

Speed of Sound