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Matrix Determinant (2×2) Calculator

Determinant of a 2×2 matrix.

Compute the determinant of a 2×2 matrix [[a, b], [c, d]] = ad − bc, with a quick singularity flag.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

det = a·d − b·c.

In depth

Compute the determinant of a 2×2 matrix [[a, b], [c, d]] = ad − bc, with a quick singularity flag.