Blackbody Radiation Calculator

Calculate thermal radiation properties of an ideal blackbody at a given temperature.

Sun: 5778 K, Room: 300 K

Results

Peak Wavelength (Wien's Law): 501.52 nm

Dominant Emission: green


Spectral Radiance at 500 nm: 2.6376e+13 W/(m²·sr·m)


Power Density: 6.3201e+7 W/m²

Total Radiated Power: 6.3201e+7 W

Key Formulas

Planck's Law: B(λ,T) = (2hc²/λ⁵) × 1/(e^(hc/λkT) - 1)

Wien's Displacement: λmax = b/T (b = 2.898 × 10⁻³ m·K)

Stefan-Boltzmann: P = σAT⁴ (σ = 5.67 × 10⁻⁸ W/(m²·K⁴))