Free Inverse Matrix Calculator
Calculate the determinant and inverse of a 2×2 or 3×3 matrix.
Inverse Matrix Calculator
Enter a value to begin.
How to use this inverse matrix calculator
- Enter four values for a 2×2 matrix or nine values for a 3×3 matrix, separated by spaces or commas.
- Check the inputs and preview, then use the primary action.
- Download, copy or use the result shown by the tool.
How the result is calculated
The determinant is calculated directly. A non-zero determinant permits the inverse, formed from cofactors and the adjugate divided by that determinant.
All calculation and transformation work happens in this browser tab. No entered value is sent to an Noler Tools application server.
Important limitations
Results are provided for convenience and should be checked independently before an important decision. A format or checksum result never authenticates an identity, document, account, licence, vehicle or registration.
Frequently asked questions
Is this inverse matrix calculator free?
Yes. It is free to use and does not require an account.
Does Noler Tools save my input?
No. The input and result remain in temporary browser memory and are not uploaded or saved by this site.