Wavelength in nanometers to Terahertz Converter
1 nanometer of wavelength is exactly 299792.458 terahertz. Convert nanometers of wavelength (λ nm) to terahertz (THz) below: type a value and the result updates as you type.
λ nm to THz calculator
Result
Wavelength in nanometers to Terahertz conversion
1 λ nm = 299792.458 THzone nanometer of wavelength in terahertz
1 THz = 299792.458 λ nmone terahertz in nanometers of wavelength
Wavelength in nanometers (λ nm): Electromagnetic wavelength in vacuum, in nanometers. Visible light is about 380 to 750 nm.
Terahertz (THz): One trillion hertz. Visible light is roughly 400 to 790 THz.
Source:SI Brochure, 9th edition (BIPM, 2019)
How to convert nanometers of wavelength to terahertz
To convert nanometers of wavelength to terahertz, divide 299792.458 by the number of nanometers of wavelength.
Formula
THz = 299792.458 ÷ λ nm
Examples
- 450 λ nm = 299792.458 ÷ 450 ≈ 666.2054622 THz
- 550 λ nm = 299792.458 ÷ 550 ≈ 545.0771964 THz
- 650 λ nm = 299792.458 ÷ 650 ≈ 461.2191662 THz
Wavelength in nanometers to Terahertz conversion table
| Wavelength in nanometers (λ nm) | Terahertz (THz) |
|---|---|
| 200 λ nm | 1498.96229 THz |
| 300 λ nm | 999.3081933 THz |
| 380 λ nm | 788.9275211 THz |
| 400 λ nm | 749.481145 THz |
| 450 λ nm | 666.2054622 THz |
| 500 λ nm | 599.584916 THz |
| 550 λ nm | 545.0771964 THz |
| 600 λ nm | 499.6540967 THz |
| 650 λ nm | 461.2191662 THz |
| 700 λ nm | 428.27494 THz |
| 750 λ nm | 399.7232773 THz |
| 850 λ nm | 352.6970094 THz |
| 1064 λ nm | 281.7598289 THz |
| 1550 λ nm | 193.414489 THz |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many terahertz are in one nanometer of wavelength?
- One nanometer of wavelength is exactly 299792.458 terahertz.
- How do I convert terahertz to nanometers of wavelength?
- To convert terahertz to nanometers of wavelength, divide 299792.458 by the number of terahertz. The formula is λ nm = 299792.458 ÷ THz.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 299792.458 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a nanometer of wavelength or a terahertz?
- A nanometer of wavelength is 299792.458 times larger than a terahertz. In other words, a terahertz is about 0.000003335640952 of a nanometer of wavelength.