Infix to Postfix online converter | Best online tool

Infix to Postfix converter

Infix:

Postfix:

Step by step Evaluation for expression

Step by Step Evaluation for postfix expression

Input String Output Stack Operator Stack

Infix notation is a way of writing arithmetic expressions in which the operands (numbers) are written between the operator symbols. For example, the infix expression “2 + 3” means “add 2 and 3.”

On the other hand, postfix notation is a way of writing arithmetic expressions in which the operands are written after the operator symbols. The same expression “2 + 3” would be written as “2 3 +” in postfix notation.

To convert an infix expression to postfix notation, you can use the following steps:

  1. Create an empty stack
  2. Start scanning the infix expression from left to right
  3. If the current character is an operand, append it to the result string
  4. If the current character is an operator, push it onto the stack
  5. If the current character is a left parentheses, push it onto the stack
  6. If the current character is a right parentheses, pop operators from the stack and append them to the result string until you reach a left parentheses. Discard the left and right parentheses.
  7. Repeat steps 2-6 until you have scanned the entire expression
  8. Pop any remaining operators from the stack and append them to the result string

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