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Determinant calculator

World's simplest math tool

Free online determinant calculator. Just enter your matrix on the left and you'll automatically get its determinant on the right. There are no ads, popups or nonsense – just a determinant calculator. Created by mathematicians for mathematicians.
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Input Matrix Options
Input matrix element separator. (Space by default.)
Input matrix row separator. (Newline by default.)
Determinant Accuracy
How many digits after the decimal point? (Five by default.)
Determinant calculator tool What is a determinant calculator?
This tool calculates the determinant of a matrix. The determinant is a single value, which is one of many numerical characteristics of a square matrix. It is calculated from the elements of a matrix using a special formula. This tool calculates determinants for matrices of arbitrarily large size. If the determinant is not a whole number, you can configure its precision by setting how many places to leave after the decimal point. Mathabulous!
Determinant calculator examples Click to use
Calculate the Determinant of a Square Matrix
This example finds the determinant of a matrix with three rows and three columns.
2 0 4 3 9 2 1 5 4
76
Required options
These options will be used automatically if you select this example.
Input matrix element separator. (Space by default.)
Input matrix row separator. (Newline by default.)
Find the Determinant with Given Accuracy
This example calculates the determinant of the matrix with the accuracy of 6 digits after the decimal point.
0.89 0.04 0.754 0.59 0.02 0.866 0.61 0.07 0.992
-0.016634
Required options
These options will be used automatically if you select this example.
Input matrix element separator. (Space by default.)
Input matrix row separator. (Newline by default.)
How many digits after the decimal point? (Five by default.)
Large Matrix Determinant
This example calculates the determinant for a 7x7 size matrix.
4 7 2 -7 9 5 8 -7 3 6 2 6 1 4 2 0 -6 3 7 0 3 4 6 7 2 8 -2 6 6 1 -4 8 2 5 1 -2 6 9 5 7 0 5 9 7 3 3 2 5 -2
361468
Required options
These options will be used automatically if you select this example.
Input matrix element separator. (Space by default.)
Input matrix row separator. (Newline by default.)
Pro tips Master online math tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinemathtools.com/matrix-determinant?input=2%200%204%0A3%209%202%0A1%205%204&input-element-separator=%20&input-row-separator=%5Cn
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