Nanometers to terahertz
Type a value in nm to get it in THz instantly.
545.1THz
That's about the same as green light. That is visible light, carrying 2.254 eV per photon.
Convert the other way: THz to nm
What it means
What color is that?
Wavelengths are for a vacuum. In glass or water light slows down and the wavelength shortens, while the frequency stays put.
The math
How to convert nm to THz
Wavelength, frequency and energy are linked by λ × f = c and E(eV) = 1239.84 ÷ λ(nm), so shorter waves carry more energy.
Example: 550 nm = 545.077 THz.
Every unit
Your light in every unit
Tables
nm to THz conversion table
| nm | THz |
|---|---|
| 200 nm | 1,498.96 THz |
| 300 nm | 999.308 THz |
| 400 nm | 749.481 THz |
| 450 nm | 666.205 THz |
| 500 nm | 599.585 THz |
| 550 nm | 545.077 THz |
| 600 nm | 499.654 THz |
| 650 nm | 461.219 THz |
| 700 nm | 428.275 THz |
| 800 nm | 374.741 THz |
| 1,000 nm | 299.792 THz |
| 1,550 nm | 193.414 THz |
THz to nm conversion table
| THz | nm |
|---|---|
| 200 THz | 1,498.96 nm |
| 300 THz | 999.308 nm |
| 400 THz | 749.481 nm |
| 450 THz | 666.205 nm |
| 500 THz | 599.585 nm |
| 550 THz | 545.077 nm |
| 600 THz | 499.654 nm |
| 650 THz | 461.219 nm |
| 700 THz | 428.275 nm |
| 800 THz | 374.741 nm |
| 1,000 THz | 299.792 nm |
| 1,550 THz | 193.414 nm |
Quick answers
Quick answers
- How many THz is 1 nm?
- 1 nm is 299,792 THz.
- How many THz is 10 nm?
- 10 nm is 29,979.2 THz.
- How many THz is 550 nm?
- 550 nm is 545.077 THz.
The units
About these units
Nanometers (nm)
The standard unit for light: visible colors run from 380 to 750 nm.
Terahertz (THz)
Frequency instead of wavelength: green light is about 545 THz.
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