Matrix Calculator — Multiply, Determinant, Inverse
Add, subtract, multiply, transpose matrices and find determinant & inverse (2×2 to 4×4). Client-side.
How to use
- 1 Pick the matrix size (2×2, 3×3 or 4×4) and an operation.
- 2 Fill in matrix A (and B for add / subtract / multiply).
- 3 The result — a matrix or a scalar — updates instantly.
Why use this tool
- Add, subtract, multiply, transpose, plus determinant and inverse.
- Works for 2×2, 3×3 and 4×4 square matrices.
- Runs entirely in your browser.
Frequently asked questions
How is the determinant computed?
By cofactor (Laplace) expansion along the first row, recursively reducing to 2×2 determinants.
How is the inverse found?
Via the adjugate matrix divided by the determinant. If the determinant is zero the matrix is singular and has no inverse.
Why must the matrices be square?
Determinant and inverse are only defined for square matrices; this tool keeps A and B the same square size so every operation is valid.
What is the transpose?
The matrix flipped over its diagonal — rows become columns and columns become rows.
What is Matrix Calculator?
A matrix calculator performs matrix arithmetic — addition, subtraction, multiplication, transpose — and computes the determinant and inverse of square matrices up to 4×4.
Matrix Calculator is a free math utility by Zerethon Tools. Add, subtract, multiply, transpose matrices and find determinant & inverse (2×2 to 4×4). Client-side. Runs entirely in the browser — no signup, no upload.
- Category
- Math
- Pricing
- Free
- Privacy
- Browser-based
- Signup
- Not required
Privacy
Your data never leaves your browser unless explicitly stated. Matrix Calculator runs entirely client-side — no server upload, no logging, no tracking of your input.
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