Matrix Transpose Calculator – Free with Step-by-Step Solutions

Calculate the transpose of any matrix instantly. Free matrix transpose calculator for 2×2, 3×3, 4×4, and larger matrices with step-by-step solutions.

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Matrix Transpose Calculator

Visualize how Rows become Columns (AT)

Quick Test Example:

Original Matrix:

[1  2  3]
[4  5  6]

Transpose Result:

[1  4]
[2  5]
[3  6]

How to Use This Matrix Transpose Calculator

Step 1: Select Matrix Dimensions

Choose your matrix size from the options above (2×2, 3×3, 4×4, or enter custom dimensions). The calculator supports matrices up to 10×10.

Step 2: Enter Matrix Elements

Click on each cell and enter your numbers. You can use:

  • Integers: 1, 2, 3, -5
  • Decimals: 1.5, 2.75, -3.14
  • Fractions: Will be converted to decimals

Step 3: Calculate the Transpose

Click the “Calculate Transpose” button to instantly compute the transpose of your matrix. The result shows the transposed matrix with all elements switched across the main diagonal.

Step 4: View Step-by-Step Solution

Enable “Show Steps” to see exactly how the transpose operation works, including which elements moved to which positions.

💡 Pro Tip: Use the “Quick Examples” buttons to load sample matrices and see how transpose works for different matrix types (identity matrix, symmetric matrix, diagonal matrix).


What is a Matrix Transpose?

The transpose of a matrix is an operation that flips a matrix over its main diagonal (the line from top-left to bottom-right). When you transpose a matrix A, you create a new matrix A^T where:

  • Rows become columns
  • Columns become rows
  • The element at position (i,j) moves to position (j,i)

Mathematical Notation

If A is an m×n matrix, then A^T (A transpose) is an n×m matrix where:

A^T[i,j] = A[j,i]

Simple Example

For a 2×3 matrix:

Original Matrix A:
[1  2  3]
[4  5  6]

Transpose A^T:
[1  4]
[2  5]
[3  6]

What happened?

  • Row 1 [1, 2, 3] became Column 1
  • Row 2 [4, 5, 6] became Column 2

Matrix Transpose Examples with Steps

Example 1: Transpose of a 2×2 Matrix

Given Matrix:

A = [3  7]
    [2  5]

Step-by-Step Solution:

Step 1: Identify the matrix dimensions

  • Original: 2×2 (2 rows, 2 columns)
  • Transpose will be: 2×2

Step 2: Apply transpose operation

  • Element A[1,1] = 3 stays at position [1,1]
  • Element A[1,2] = 7 moves to position [2,1]
  • Element A[2,1] = 2 moves to position [1,2]
  • Element A[2,2] = 5 stays at position [2,2]

Step 3: Write the transpose matrix

A^T = [3  2]
      [7  5]

Result: The transpose of matrix A is a 2×2 matrix where rows and columns are swapped.


Example 2: Transpose of a 3×3 Matrix

Given Matrix:

B = [1  2  3]
    [4  5  6]
    [7  8  9]

Step-by-Step Solution:

Step 1: Original matrix is 3×3, transpose will also be 3×3

Step 2: Swap rows and columns

Row 1: [1, 2, 3] → Column 1 in B^T
Row 2: [4, 5, 6] → Column 2 in B^T
Row 3: [7, 8, 9] → Column 3 in B^T

Step 3: Construct transpose matrix

B^T = [1  4  7]
      [2  5  8]
      [3  6  9]

Verification:

  • B[1,2] = 2, and B^T[2,1] = 2 ✓
  • B[2,3] = 6, and B^T[3,2] = 6 ✓
  • B[3,1] = 7, and B^T[1,3] = 7 ✓

Example 3: Transpose of a Rectangular Matrix (2×4)

Given Matrix:

C = [1   2   3   4]
    [5   6   7   8]

Step-by-Step Solution:

Step 1: Identify dimensions

  • Original: 2×4 (2 rows, 4 columns)
  • Transpose will be: 4×2 (4 rows, 2 columns)

Step 2: Convert each row to a column

Row 1: [1, 2, 3, 4] becomes Column 1
Row 2: [5, 6, 7, 8] becomes Column 2

Step 3: Write transpose matrix

C^T = [1  5]
      [2  6]
      [3  7]
      [4  8]

Key Insight: Notice how a 2×4 matrix becomes a 4×2 matrix. The dimensions always flip when you transpose!


Example 4: Transpose with Negative Numbers

Given Matrix:

D = [-2   4   0]
    [ 6  -1   3]

Solution:

D^T = [-2   6]
      [ 4  -1]
      [ 0   3]

Note: The transpose operation doesn’t change the values of elements, only their positions.




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