Linear Algebra Calculators
A free suite of matrix and vector tools that run entirely in your browser — no sign-up, nothing sent to a server. Use them to check homework, explore examples, and build intuition alongside the proof-first lessons.
Matrix calculators
Matrix Addition & Subtraction
Add or subtract two matrices of the same size.
Matrix Multiplication
Multiply two compatible matrices (AB).
Determinant Calculator
Compute the determinant of a square matrix.
Inverse Matrix Calculator
Find the inverse of a square matrix.
RREF & Gaussian Elimination
Row reduce a matrix to reduced row echelon form.
Eigenvalues & Eigenvectors
Find eigenvalues and eigenvectors of a 2×2 or 3×3 matrix.
Vector calculators
Dot Product Calculator
Compute the dot product and angle between two vectors.
Cross Product Calculator
Compute the cross product of two 3D vectors.
Vector Magnitude Calculator
Find the length (norm) and unit vector.
Vector Projection Calculator
Project one vector onto another.
Linear Independence Checker
Test whether a set of vectors is independent.
Span & Basis Helper
Find a basis and the dimension of a span.