Compa-Ratio Calculator
Enter a salary and its pay range to find the compa-ratio, range penetration, and midpoint, then see exactly where that pay sits within the band.
How the Compa-Ratio Formula Works
A compa-ratio compares an individual salary to the midpoint of the pay range built for that role. The formula is simple. First the calculator finds the midpoint by averaging the range minimum and maximum, so a range of 75,000 to 115,000 has a midpoint of 95,000. It then divides the salary by that midpoint and multiplies by 100. A salary that lands exactly on the midpoint produces a compa-ratio of 100%, the natural reference point for a fully competent employee in the role.
Alongside the compa-ratio, this tool calculates range penetration. Instead of comparing to the midpoint, range penetration measures how far the salary travels from the bottom of the range to the top. It subtracts the minimum from the salary, divides by the full width of the range (maximum minus minimum), and multiplies by 100. A salary at the floor reads 0% penetration and a salary at the ceiling reads 100%, which makes it an intuitive way to picture position within a band.
The calculator then attaches a position label. Below 80% is flagged as below range, 80% to 95% as developing or below midpoint, 95% to 110% as at market, 110% to 120% as above midpoint, and anything over 120% as above range or red-circled. These bands are widely used reference points in compensation work, though the exact cutoffs your organization uses may differ.
Why the Compa-Ratio Matters
The compa-ratio turns a single salary number into context. On its own, a salary tells you very little, because what counts as competitive depends entirely on the role and the market. By anchoring pay to a range midpoint, the compa-ratio lets managers and employees ask a more useful question, namely whether someone is paid appropriately for where they are in their development and the value they deliver. It is one of the most common metrics in structured compensation programs.
For employers, compa-ratios support consistent and defensible pay decisions. Reviewing them across a team highlights people who may be underpaid, guides merit budgets toward those still climbing to midpoint, and surfaces salaries that have drifted out of band. For employees, knowing your compa-ratio is valuable preparation for a pay conversation, because it frames any request around the established range rather than an arbitrary figure. The healthy target band most teams watch is roughly 80% to 120%.
How to Read Your Results
The large percentage at the top is the compa-ratio, your salary measured against the range midpoint. The midpoint itself is shown below so you can see the reference dollar figure the ratio is built on. Range penetration appears next, expressing position as a journey from the bottom of the range (0%) to the top (100%). Together these two numbers give complementary views, one centered on the midpoint and one spanning the full band.
The position line summarizes where the pay sits in plain language. A result well below 80% may signal a new hire still ramping up or a salary that has fallen behind, while a result above 120% suggests pay has outgrown the range and may be red-circled. As always, treat the labels as guidance. The right target depends on your company's pay philosophy, the employee's performance, and how recently the range was updated against the market.