THz to Hz converter (THz to Hz)
Convert THz (THz) to Hz (Hz) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
How to convert THz to Hz
1 terahertz (THz) is equal to 1,000,000,000,000 hertz (Hz).
f(Hz) = f(THz) × 1,000,000,000,000
Multiply the frequency in THz by 1,000,000,000,000:
Example: Convert 1 THz to Hz:
f(Hz) = 1 × 1,000,000,000,000 = 1,000,000,000,000 Hz
What is a THz?
The THz (THz) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Hz?
The Hz (Hz) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts frequency from THz into Hz. One THz equals 1.000000e+12 Hz.
THz to Hz conversion table
Common THz values and the matching Hz result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| THz (THz) | Hz (Hz) |
|---|---|
| 0.001 THz | 1000000000 Hz |
| 0.1 THz | 100000000000 Hz |
| 1 THz | 1.000000e+12 Hz |
| 10 THz | 1.000000e+13 Hz |
| 100 THz | 1.000000e+14 Hz |
How this calculator works
The form on this page is a THz-to-Hz converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the Hz result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many Hz are in 1 THz?
1 THz = 1.000000e+12 Hz.
How do I convert THz to Hz?
Multiply the frequency in THz by 1,000,000,000,000:
Is this THz to Hz converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.