Terahertz (THz)
The terahertz (symbol: THz) is an SI unit of frequency equal to one trillion hertz (10^12 Hz). Positioned on the electromagnetic spectrum between microwaves and far-infrared light, terahertz radiation oscillates at trillions of cycles per second. Historically challenging to generate and detect—a gap known as the terahertz gap—this frequency regime is now widely utilized in high-speed wireless research, non-destructive imaging, and spectroscopy.
Frequency
- Nanohertz (nHz)1×10²¹
- Microhertz (µHz)1×10¹⁸
- Millihertz (mHz)1×10¹⁵
- Hertz (Hz)1×10¹²
- Kilohertz (kHz)1×10⁹
- Megahertz (MHz)1,000,000
- Gigahertz (GHz)1,000
- Terahertz (THz)1
Rotational speed
- Cycle per second (cps)1×10¹²
- Revolutions per minute (rpm)6×10¹³
- Beats per minute (BPM)6×10¹³
Angular velocity
- Radian per second (rad/s)6.28×10¹²
- Radian per minute3.77×10¹⁴
- Radian per hour2.26×10¹⁶
- Radian per day5.43×10¹⁷
- Degrees per second3.6×10¹⁴
- Degrees per minute2.16×10¹⁶
- Degrees per hour1.3×10¹⁸
- Degrees per day3.11×10¹⁹