Terahertz (THz)

The terahertz range lies between microwaves and infrared light, used in security scanners and spectroscopy.

Convert terahertz to any frequency unit

1 terahertz = 1,000,000,000,000 hertz

Quick facts

Unit
Terahertz
Symbol
THz
Measures
Frequency
System
Hertz
Equals
1,000,000,000,000 hertz
Definition
10¹² Hz.

1 terahertz in other units

Hertz1,000,000,000,000 Hz
Gigahertz1,000 GHz
Megahertz1,000,000 MHz
Kilohertz1,000,000,000 kHz
Revolutions per minute60,000,000,000,000 rpm
Beats per minute60,000,000,000,000 bpm
Cycles per second1,000,000,000,000 cps

What is a terahertz?

The terahertz range lies between microwaves and infrared light, used in security scanners and spectroscopy. Visible light is about 400–750 THz.

Where the terahertz sits among frequency units

The terahertz is number 20 of 24 on our scale of frequency units, ordered from smallest to largest.

Cycle per second1 THz = 1,000,000,000,000 cps Kilohertz1 THz = 1,000,000,000 kHz Megahertz1 THz = 1,000,000 MHz Gigahertz1 THz = 1,000 GHz Terahertzthis unit Fresnel1 fresnel = 1 THz Petahertz1 PHz = 1,000 THz Exahertz1 EHz = 1,000,000 THz Planck frequency1 ωP = 1.854858 × 1031 THz

Top terahertz conversions

Common amounts of terahertz

Convert terahertz to all 23 other units

Hertz

Cycles & rotation

Per unit of time

Convert to terahertz

Frequently asked questions

What is a terahertz?

The terahertz range lies between microwaves and infrared light, used in security scanners and spectroscopy.

How is the terahertz defined?

10¹² Hz.

How many hertz are in a terahertz?

One terahertz equals 1,000,000,000,000 hertz.

How many gigahertz are in a terahertz?

One terahertz equals 1,000 gigahertz.

How many megahertz are in a terahertz?

One terahertz equals 1,000,000 megahertz.