Reading a percentile off your own score report
GRE and GMAT percentile ranks come from the distribution of recent test takers and are republished each year, so pinning one year's table into a page would leave it wrong for every other year. This tool builds in no table. You read two anchors off your score report or an official guide, each a score with the percentile beside it, and the page works out where your own score sits between them. Fill in both tests and it also compares the two percentiles to show which one stands higher.
How the numbers are worked out
This is plain interpolation on the line through your two anchors, and the formula applied is printed with the result. A score equal to an anchor returns that reported percentile unchanged, a score between the anchors is marked as interpolation, and a score outside them is marked as extrapolation and less reliable. A computed value beyond 0 to 100 is pulled back into range and the result says so. When comparing different tests, percentiles are the safer footing, not raw scores.
What this page does not do
It supplies no official percentile table for any given year and does not translate a GRE score into a GMAT score. Admission chances and school cutoffs are not covered.
Frequently Asked Questions
ETS and GMAC republish percentiles every year as the test-taker pool shifts. Fixing one year into the page would make it wrong for other years, so you supply the anchors instead.
Use the percentile printed on your own score report, or the percentile guide the testing organisation publishes, and take the score and percentile from two different rows.
Converting raw score to raw score is not supported here. The comparison runs through the percentile of each test instead.