My millimeter-wave radar module is spec'd at 77 GHz. A research paper refers to it in THz — how do I convert?

77 GHz = 0.077 THz. Divide GHz by 1,000. The paper may use THz to place the frequency on a chart spanning the full electromagnetic spectrum.

Airport security body scanners are described as terahertz scanners. What GHz range do they operate in?

Typically 300–600 GHz (0.3–0.6 THz). These frequencies penetrate fabric but reflect off skin and metallic objects, producing images without ionizing radiation.

I'm reading a photonics paper that gives a laser frequency as 1.5 THz. What is that in GHz so I can compare it to my RF equipment?

1.5 THz = 1,500 GHz. Multiply THz by 1,000. Most RF test equipment tops out well below this range — THz sources require specialized photonic or quantum-cascade devices.

What sits between GHz and THz on the frequency spectrum?

The 100–1,000 GHz range (0.1–1 THz) is called the terahertz gap or millimeter-wave band. It is difficult to generate and detect efficiently with conventional electronics or optics, making it an active research area for imaging, spectroscopy, and high-speed wireless links. See also: GHz to MHz .

Gigahertz (GHz) to Terahertz (THz) Converter

Enter a value to instantly convert between frequency units.

From

Precision4 dp

1 Gigahertz = 0.001 Terahertz

Key Formulas

Hertz → Kilohertz

kHz = Hz × 0.001

Kilohertz → Hertz

Hz = kHz × 1000

Megahertz → Gigahertz

GHz = MHz × 0.001

Gigahertz → Megahertz

MHz = GHz × 1000

Formula

THz = GHz ÷ 1,000

Terahertz science sits between microwave and infrared light. When working with millimeter-wave radar (77 GHz automotive sensors), high-frequency oscillators, or transitioning from GHz-range measurements into THz spectroscopy instruments, you need to cross this unit boundary. Divide GHz by 1,000 to get THz. A 300 GHz millimeter-wave signal is 0.3 THz — the edge of the terahertz gap explored in security imaging and materials research.

Source: NIST SP 811, Table B.8

Frequently Asked Questions

Real-World Examples

Lower boundary of the terahertz gap. 300 GHz (0.3 THz) marks where traditional microwave electronics meets THz photonics research.

300 GHz = 0.3 THz

Automotive radar sensors operate at 77 GHz (0.077 THz). These short-range radars enable adaptive cruise control and collision avoidance.

77 GHz = 0.077 THz

Exactly 1 THz = 1,000 GHz. This frequency is used as a reference point in THz spectroscopy and falls in the far-infrared region of the spectrum.

1000 GHz = 1 THz

600 GHz (0.6 THz) is used in some airport security body scanners. THz waves penetrate clothing but are non-ionizing, unlike X-rays.

600 GHz = 0.6 THz

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Gigahertz (GHz) to Terahertz (THz) Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

Related Converters