Reduced Row Echelon Form (RREF) Calculator

Your details

Number of rows (equations) in the matrix.
Number of columns. Use one extra column for an augmented matrix [A|b].
RREF gives a unique form with 1s on pivots and 0s everywhere else. REF only eliminates downward.
Fractions show exact results; decimals are easier to read for simple entries.
When on, the last column is treated as the constants vector b and the solution is interpreted.
Result Matrix
[ 1 0 0 2 ] [ 0 1 0 3 ] [ 0 0 1 -1 ]

The matrix in reduced row echelon form (or row echelon form).

SolutionUnique solution: x = 2, y = 3, z = -1
Rank3 (out of 3 possible)
Row operations used11

Reduced Row Echelon Form computed.

  • Unique solution: x = 2, y = 3, z = -1
  • A unique solution means the system has exactly as many independent equations as unknowns.
  • Matrix rank: 3 (out of 3 possible).
  • 11 elementary row operation(s) were applied.

Next stepTo verify, multiply your original matrix by the inverse (if square) or use back-substitution on the REF.

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