Energy Density of Fields

Calculate the energy stored per unit volume in electric and magnetic fields.

Electric Field (E) [V/m]

Magnetic Field (B) [Tesla]

Electric Energy Density (u_E)

4.4271e-6 J/m³

Magnetic Energy Density (u_B)

3.9789e+3 J/m³

Total Energy Density

3.9789e+3 J/m³

The Formulas

u_E = ½ ε₀ E²

u_B = B² / (2μ₀)

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