All Tools VerseMatrix Multiplication Calculator
Multiply two matrices, where the columns of A must equal the rows of B.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Calculated locally in your browser. Your matrices never leave this tab.
How to Use Matrix Multiplication Calculator
- Enter Matrix A. One row per line, values separated by spaces.
- Enter Matrix B. Its rows must match A's columns.
- Multiply. The matrix product is calculated.
- Copy the result. Click Copy result. It all runs in your browser.
Frequently Asked Questions
What sizes can I multiply?
The number of columns in Matrix A must equal the number of rows in Matrix B, which is the rule for matrix multiplication.
What size is the result?
It has the rows of A and the columns of B.
Is the order important?
Yes. Matrix multiplication is not commutative, so A times B is generally different from B times A.
Is anything uploaded?
No. The calculation runs in your browser, so your matrices never leave the tab.
Is it free?
Yes. Every tool here is free to use with no sign up.
Related Tools
Matrix Addition Calculator →
Add two matrices of the same size, element by element, in your browser.
Matrix Subtraction Calculator →
Subtract one matrix from another of the same size, element by element.
Multiply Hex Numbers →
Multiply two or more hexadecimal numbers and show the product in hex. Free, private,…
Age Calculator - Years, Months and Days →
Free age calculator. Find your exact age in years, months and days from your…
Calculate Factorial →
Calculate Factorial up to n=5,000 with exact BigInt arithmetic. Free, offline, client-side - includes…
Date Difference Calculator - Days Between →
Free date difference calculator. Find the time between two dates in years, months and…
Discount Calculator - Sale Price and Savings →
Free discount calculator. Enter a price and percent off to get the sale price…
Find All Divisors →
Find every divisor of any integer up to 1 billion - divisor count, sum,…
Fraction Calculator - Add, Subtract, Multiply →
Free fraction calculator. Add, subtract, multiply or divide two fractions and get a simplified…
Generate the Thue-Morse Sequence →
Generate the Thue-Morse sequence, where each term is the parity of the ones in…
GPA Calculator - Weighted Grade Point Average →
Free GPA calculator. Add your courses with grades and credit hours to get your…
Hours Calculator - Time Between Two Times →
Free hours calculator. Enter a start and end time to get hours worked, with…