Convert Hertz to Terahertz (Hz to THz)
1 hertz (Hz) = 1 × 10⁻¹² terahertz (THz). 1 THz = 1000000000000 Hz. Example: 15 Hz = 15 × 1 × 10⁻¹² = 1.5 × 10⁻¹¹ THz.
Also searched as hertz to THz, hertz in THz, hertz into terahertz, Hz to THz, Hz in terahertz, Hz into terahertz, hertz to terahertz, Hz to terahertz converter and how many terahertz in a hertz.
1 Hz = 1e-12 THz
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk hertz to terahertz converter to paste a column from Excel.
How to Convert Hertz to Terahertz
- 1 Hz = 1 × 10⁻¹² THz
- 1 THz = 1000000000000 Hz
- Example: convert 15 Hz to THz: 15 Hz = 15 × 1 × 10⁻¹² THz = 1.5 × 10⁻¹¹ THz
Formula
THz = Hz ÷ 1000000000000
Derivation from SI units:
- 1 Hz = 1 s⁻¹, one cycle per second.
- 1 THz = 10¹² Hz.
Both units are defined exactly, so the factor is exact. Hertz definition: hertz; Terahertz definition: terahertz.
Worked examples
- A reading of 50 Hz converts to 5 × 10⁻¹¹ THz.
50 Hz × 1 × 10⁻¹² = 5 × 10⁻¹¹ THz - A value of 440 Hz is 4.4 × 10⁻¹⁰ THz.
440 Hz × 1 × 10⁻¹² = 4.4 × 10⁻¹⁰ THz
Hertz to Terahertz conversion table
| Hertz (Hz) | Terahertz (THz) |
|---|---|
| 1 Hz | 1 × 10⁻¹² THz |
| 10 Hz | 1 × 10⁻¹¹ THz |
| 50 Hz | 5 × 10⁻¹¹ THz |
| 60 Hz | 6 × 10⁻¹¹ THz |
| 100 Hz | 1 × 10⁻¹⁰ THz |
| 440 Hz | 4.4 × 10⁻¹⁰ THz |
| 1000 Hz | 1 × 10⁻⁹ THz |
| 20000 Hz | 2 × 10⁻⁸ THz |
Where it's used
Hertz are used for mains power (50/60 Hz), while terahertz appear in optical communications. Both measure frequency and rotational speed, so the conversion is a fixed factor.
Hertz to other frequency units
| Conversion | 1 Hz equals |
|---|---|
| hertz to terahertz | 1 × 10⁻¹² THz |
| hertz to megahertz | 0.000001 MHz |
| hertz to gigahertz | 1 × 10⁻⁹ GHz |
| hertz to revolution per minute | 60 rpm |
| hertz to kilohertz | 0.001 kHz |
| hertz to radian per second | 6.283185307 rad/s |
| hertz to revolution per second | 1 rps |
| hertz to degree per second | 360 °/s |
Show 1 more units
| hertz to beat per minute | 60 bpm |
|---|
Frequently asked questions
How many terahertz are in 1 hertz?
1 Hz = 1 × 10⁻¹² THz.
How do I convert hertz to terahertz?
Multiply the value in Hz by 1 × 10⁻¹², or divide it by 1000000000000. For example, 15 Hz × 1 × 10⁻¹² = 1.5 × 10⁻¹¹ THz.
Is the Hz to THz conversion exact?
Yes. Both units are defined exactly, and 1 Hz is exactly 1 × 10⁻¹² THz.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Hertz to Terahertz (Hz to THz). Retrieved October 25, 2026, from https://scientificconverters.com/frequency/hertz-to-terahertz/
IEEE
Scientific Converters, "Convert Hertz to Terahertz (Hz to THz)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/frequency/hertz-to-terahertz/