Wien's Law Calculator
Free calculate peak wavelength of blackbody radiation using wien's displacement law: λ_max = b / t. Get instant, accurate results with our easy-to-use calculator.
Input Parameters
Example: 5778 K (Sun's surface temperature)
Results
Enter temperature to calculate peak wavelength
Wien's Displacement Law
Wien's Law Formula
λ_max = b / T
Where λ_max = peak wavelength, b = Wien's constant (2.898×10⁻³ m·K), T = temperature
Examples
- • Sun (5778 K): ~502 nm (green)
- • Incandescent bulb (3000 K): ~966 nm (infrared)
- • Human body (310 K): ~9350 nm (infrared)