basic

Parallel-Plate Capacitance Calculator

C = ε₀ · ε_r · A / d.

Compute the capacitance of a parallel-plate capacitor from the plate area A, the separation d, and the dielectric constant ε_r: C = ε₀ · ε_r · A / d, where ε₀ = 8.854 × 10⁻¹² F/m.

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

Inputs

cm²
mm

Results

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How to use this calculator

  1. Fill in the inputs above using the units you already have.
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  3. Hover any result row for the underlying formula and intermediate values.

Formula

C = ε₀ · ε_r · A / d

In depth

Compute the capacitance of a parallel-plate capacitor from the plate area A, the separation d, and the dielectric constant ε_r: C = ε₀ · ε_r · A / d, where ε₀ = 8.854 × 10⁻¹² F/m.