➗ Math
Matrix Multiply Calculator
Matrix multiplication combines rows of the first matrix with columns of the second. Unlike ordinary multiplication it is not commutative, so the order of the matrices matters.
How it works
A row 1 col 1
A row 1 col 2
A row 2 col 1
A row 2 col 2
B row 1 col 1
B row 1 col 2
B row 2 col 1
B row 2 col 2
Result r1c1
Result r1c2
Result r2c1
Result r2c2
Determinant of A
Determinant of B
Frequently asked questions
How do I use the Matrix Multiply Calculator?
Fill in the fields above — the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.