Matrix Calculator
Add, multiply, determinant, inverse
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About the Matrix Calculator
Matrix calculator for 2×2 and 3×3 matrices: addition, subtraction, multiplication, determinant, transpose, and inverse (with singular-matrix detection). Edit cells in place and read clean fraction-free decimal results — a linear-algebra homework companion.
How to use
- 1Choose 2×2 or 3×3 and an operation.
- 2Fill in matrix A (and B if needed).
- 3Read the resulting matrix or determinant.
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Matrix Calculator is part of DevKit — 100 free, privacy-first tools for developers, students, and everyone, built by Minhazul Ashim. Everything runs in your browser; your data never leaves your machine.