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Both terahertz (THz) and hertz (Hz) are units of frequency, representing the number of cycles per second. They’re part of the International System of Units (SI) used to describe the frequency of an oscillatory event.

## Hertz (Hz)

One hertz represents one cycle per second. It’s the SI unit for frequency. For instance, if a guitar string vibrates 440 times in a second, its frequency would be 440 Hz.

## Terahertz (THz)

One terahertz represents 10^{12} cycles per second. “Tera” is a prefix in the SI system denoting 1012 (or a trillion). So, 1 THz = 10^{ 12}Hz.

### How to convert terahertz to hertz

1THz = 10^{12}Hz

or

1Hz = 10^{-12}THz

### Terahertz to hertz formula

f_{(Hz)} = f_{(THz)} × 10^{12}

Example- Convert 3 THz to Hz

Ans. f_{(Hz)} = 3THz × 10^{12} = 3×10^{12}Hz

#### Also Read

### Terahertz to hertz conversion table

Terahertz (tdz) | Hertz (Hz) |

0 tdz | 0 Hz |

0.000001 tdz | 10^{6} Hz |

0.00001 tdz | 10^{7} Hz |

0.0001 tdz | 10^{8} Hz |

0.001 tdz | 10^{9} Hz |

0.01 tdz | 10^{10} Hz |

0.1 tdz | 10^{11} Hz |

1 tdz | 10^{12} Hz |

## FAQs on THz to Hz conversion

### What is 1 THz equal to?

1 THz (terahertz) is equal to 1,000,000,000,000 hertz or 1012Hz.

### What is the conversion of 1 Hz?

1 Hz (hertz) is the basic unit of frequency. It represents one cycle per second. Therefore, there isn't a conversion for 1 Hz on its own. It's the standard measure for frequency.

### What is the wavelength of 1 THz?

The relationship between frequency (f) and wavelength (λ) is given by the equation c=f×λ, where c is the speed of light (approximately 3×108 meters per second). Given this, the wavelength λ for 1 THz is about 0.3 mm (or 300 µm), assuming the wave is propagating in a vacuum.

### Is terahertz bigger than hertz?

Yes, terahertz is much bigger than hertz. Specifically, 1 terahertz is a trillion times larger than 1 hertz.

### Is terahertz low frequency?

No, terahertz is considered a high frequency. It lies between the microwave and infrared regions of the electromagnetic spectrum. When compared to radio frequencies (RF) or microwaves, terahertz is much higher in frequency.

### What is the principle of terahertz?

Terahertz refers to electromagnetic waves propagating at terahertz frequencies. The principle of terahertz technology revolves around generating, detecting, and manipulating these high-frequency waves. Terahertz waves have unique properties, such as the ability to penetrate certain materials (like clothing or paper) without ionizing biological tissues. This makes them useful for various applications, including security scanning, medical imaging, and spectroscopy, among others.