Science
Net thermal radiation
Estimate net radiated power exchanged with large surroundings from emissivity, surface area and the difference of fourth powers of absolute temperatures.
Calculators / Science / Wien peak wavelength
Wien peak wavelength calculator
Find the wavelength of maximum blackbody spectral radiance per unit wavelength from absolute temperature; the frequency-spectrum peak is different.
On this page
Peak wavelength502.04nm
Calculator controls
How to calculate
Find the wavelength of maximum blackbody spectral radiance per unit wavelength from absolute temperature; the frequency-spectrum peak is different.
Peak wavelength = 2.897771955e-3/T*1000000000 nm
Worked example
Absolute temperature (K): 5772.
Peak wavelength: 502.04 nm.
Assumptions and limits
Find the wavelength of maximum blackbody spectral radiance per unit wavelength from absolute temperature; the frequency-spectrum peak is different. Peak of the blackbody spectrum per unit wavelength, not per unit frequency. Use absolute kelvin; real materials may have different spectra.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Find the wavelength of maximum blackbody spectral radiance per unit wavelength from absolute temperature; the frequency-spectrum peak is different.
When this tool is useful
Peak wavelength = 2.897771955e-3/T*1000000000 nm
Understanding your inputs
| Input | What to enter |
|---|---|
| Absolute temperature (K) | Enter a number of at least 1e-12 and no more than 1000000000000. |
Frequently asked questions
What assumptions does this calculation use?
Find the wavelength of maximum blackbody spectral radiance per unit wavelength from absolute temperature; the frequency-spectrum peak is different. Peak of the blackbody spectrum per unit wavelength, not per unit frequency. Use absolute kelvin; real materials may have different spectra.
How is the result calculated?
Peak wavelength = 2.897771955e-3/T*1000000000 nm