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Matrix Calculator

Calculate determinant of 2x2 and 3x3 matrices

matrixdeterminantlinear algebra

📖 How to Use

Select 2×2 or 3×3 matrix
Enter numbers in each cell
Click Calculate Determinant

📐 Formula

2×2: det = ad−bc
3×3: det = a(ei−fh) − b(di−fg) + c(dh−eg)

❓ FAQ

What is a determinant used for?▾

Determinants help check if a matrix is invertible, solve linear systems, and compute areas/volumes.

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About Matrix Calculator

This tool is completely free, no registration required. Works directly in your browser. Supports both PC and mobile devices.

Matrix Calculator is a free online tool that works on both PC and mobile. No registration or download required — just open in your browser. Results are accurate and reliable for everyday use and professional reference.