Introduction
A compa ratio shows how one person's pay compares to the market pay for their job. It is a simple percent. If your salary is $74,500 and the market reference pay is $80,000, your compa ratio is 93.1%. That means you are paid a bit below the market rate.
This Compa Ratio Calculator turns those numbers into that percent. Pick your country to set the currency. Then choose one of two ways to start. You can enter your pay range (the lowest and highest pay for the job), and the tool finds the midpoint for you. Or you can type in the market reference pay yourself. Last, enter the employee's actual salary and press Calculate.
You will see the compa ratio as a percent, a color gauge that shows if the pay is low, fair, or high, and the range position (where the salary sits between the range minimum and maximum). The tool also shows each step of the math, a chart, and a table with what the number means and what HR might do next.
There is also a reverse calculator. Enter a target compa ratio, like 100%, and the market reference pay. The tool tells you the salary needed to hit that target. This helps with raise plans, job offers, and pay reviews.
How to use our Compa Ratio Calculator
Enter your pay range or market reference pay, plus the employee's salary. The calculator shows the compa ratio as a percent, where it falls on the gauge, the range position, and what HR should do next.
Input Method: Pick "I Know My Pay Range" if you have a salary band with a low and high number. Pick "I Know the Market Reference Pay" if you already have one target pay number.
Country: Choose your country. This sets the money symbol used in every salary field and result.
Range Minimum: Type the lowest salary in the pay range for that job. Use the plus and minus buttons to change it fast.
Range Maximum: Type the highest salary in the pay range. It must be bigger than the minimum.
Market Reference Pay (Midpoint): You do not type this in range mode. The tool works it out for you by adding the min and max, then dividing by two.
Market Reference Pay: In reference mode, type the market rate or band midpoint for the job. This is the number the salary is compared to.
Employee Actual Salary: Type what the employee is paid now, before bonus. Then press Calculate.
Target Compa Ratio (%): In the reverse calculator, type the compa ratio you want, like 100 for market rate.
Market Reference Pay (reverse): Type the market pay for that job. The tool shows the salary you need to hit your target compa ratio.
What Is a Compa Ratio?
A compa ratio (short for "comparative ratio") shows how a person's pay compares to a market reference pay. The market reference pay is the target pay for that job, often the midpoint of a company's salary range for that role. The answer is shown as a percent.
The Compa Ratio Formula
Compa Ratio = (Employee Salary ÷ Market Reference Pay) × 100
Example: If someone earns $74,500 and the reference pay is $80,000, the compa ratio is 93.1%. That means they earn about 93 cents for every dollar the market pays for that job.
What the Numbers Mean
- Below 80%. Pay is far under market. This is a big risk for losing the worker.
- 80%–99%. Pay is under market. This is normal for new or still-learning workers.
- 100%–110%. Pay matches the market. This is the target zone for a fully trained worker.
- Above 110%. Pay is over market. Often seen with long-time or top performers.
Compa Ratio vs. Range Position
These two numbers are not the same. Compa ratio compares pay to one point, the midpoint. Range position compares pay to the whole salary range, from the lowest to the highest pay for the job. Range position is found this way:
Range Position = (Salary − Range Min) ÷ (Range Max − Range Min) × 100
A worker can be at 93% compa ratio but only in the 36th percentile of their range. Looking at both gives a clearer picture.
Why Compa Ratio Matters
HR teams and managers use compa ratio to keep pay fair and to plan raises. It helps answer questions like: Are we paying this person enough to keep them? Are two workers doing the same job paid the same way? Do we need to fix a pay gap before someone quits? Workers can use it too, to see if their salary lines up with what the job is worth before asking for a raise.
Things to Watch For
A compa ratio is only as good as the reference pay behind it. If the salary benchmark is old, the ratio will look better than it really is. Update market data at least once a year. Also check that the job is matched to the right grade and level. Comparing the wrong jobs gives the wrong answer.