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# Blackbody Energy Calculator

The Blackbody Energy Calculator is a tool used to determine the amount of energy radiated per unit area by a blackbody. A blackbody is an idealized physical object that absorbs all incident radiation and re-emits energy as thermal radiation. This calculator applies the Stefan-Boltzmann Law to compute the total energy radiated by a blackbody at a given temperature.

## Formula of Blackbody Energy Calculator

To calculate the energy radiated per unit area, use the following formula:

Where:

• E = Energy radiated per unit area (W/m²)
• σ = Stefan-Boltzmann constant, approximately 5.670374419 × 10^-8 W/m²K⁴
• T = Absolute temperature of the blackbody in Kelvin (K)

## General Reference Table

For convenience, here is a table showing the energy radiated per unit area at various temperatures:

### Example of Blackbody Energy Calculator

If the temperature of the blackbody is 600 K, the energy radiated per unit area can be calculated as follows:

1. T = 600 K
2. σ = 5.670374419 × 10^-8 W/m²K⁴

Apply the Formula:

E = 5.670374419 × 10^-8 * (600)^4

E ≈ 5.670374419 × 10^-8 * 1.296 × 10^8

≈ 7.36 × 10^1 W/m²