Enter the total number of tasks completed, and the total number of tasks of the project into the calculator to determine the completion percentage.

Completion Percentage Formula

The following formula is used to calculate a completion percentage.

C% = TC/TT * 100

  • Where C% is the completion percentage
  • TC is the total tasks completed
  • TT is the total number of tasks for the entire project

Completion Percentage Definition

What is a completion percentage? A completion percentage is a term most often used in project management to describe the percentage of tasks completed on a given project. This can also be used in cases like school projects or single assignment completion rates.

Example Problem

How to calculate a completion percentage?

  1. First, determine the total number of tasks.

    Count up or calculate the total tasks required to complete a project. For this example, there are 100 total tasks.

  2. Next, determine the number current completed.

    For this problem, 25 tasks have been complete thus far.

  3. Finally, calculate the completion percentage.

    Using the formula, the completion percentage is calculated to be: 25/100 * 100 = 25%.


What is a good completion percentage? A good completion percentage depends on the initial schedule outlined at the start of a project. For example, if the initial timeline says that 25% of the tasks of a project should be completed by a certain date, but only 10% have, then the project is very behind schedule.