Compa Ratio Calculator
Enter the employee’s salary ($) and the market average ($) to calculate the Compa Ratio quickly.
Enter any two values to find the missing one.
How to use the Compa Ratio calculator?

Enter details
Provide the current salary and the average market salary for the position.

Click ‘calculate’ and get results
The calculator will instantly calculate the Compa Ratio, showing how the employee’s pay compares to the market average.

What is a Compa Ratio?
A compa ratio is an abbreviation for comparison ratio, a metric the HR team uses to assess and compare an employee’s salary to the average salary for their job. It calculates whether an employee is paid fairly based on the market rate.
- A compa ratio of 100% means the employee’s salary matches the average pay for the role.
- A ratio above 100% means they earn more than the average.
- A ratio below 100% means they earn less than the average.
Put simply, it shows if an employee is paid fairly compared to others in similar roles.
Compa Ratio Formula
The comparison ratio or Compa ratio is calculated using the following formula:
Compa Ratio=( Employee’s current salary / Market average salary)×100
Divide an employee’s current salary (CS) by the market average (MA) salary for the position, multiply it by 100 to calculate Compa ratio.
How to calculate the Compa Ratio?
Let’s say an employee earns $60,000 annually, and the market average salary for their position is $65,000.
Step 1: Use the formula
Compa ratio=( Employee’s current salary / Market average salary)×100
Step 2: Enter the details
( 65,000/ 60,000 )×100=92.3%
Step 3: Interpret the result
A compa ratio of 92.3% means the employee earns 92.3% of the market average, which indicates they are paid below the market rate.







