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Wien's Displacement Law Peak Wavelength Calculator

λ_max · T = b, with b = 2.8978 × 10⁻³ m·K.

Compute the wavelength of peak spectral emission of a black-body at temperature T using Wien's displacement law: λ_max = b / T. Reports λ_max in metres, micrometres and nanometres.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

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Results

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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

λ_max = b / T, b = 2.8977719 × 10⁻³ m·K.

In depth

Compute the wavelength of peak spectral emission of a black-body at temperature T using Wien's displacement law: λ_max = b / T. Reports λ_max in metres, micrometres and nanometres.