<p>Only some colleges even use conversion tables. The others know what they are looking for on both tests and do not rely on conversions. Those that do conversions usually do not tell you the tables they use and many won’t even confirm they do conversions. Some (none of your high ranks as far as I am aware) actually use the tables published by CB and ACT. Majority, however, have thier own tables including because those ACT/CB tables are now several years old (from 2008 based on data before 2008) and thus should not be relied on to do conversions. The conversion tables colleges use may use national data from the tests in the last couple years (e.g., Gtech) or tables based on actual applicants in the last few years to the particular university (e.g., UTexas). As a result, you should assume that the ACT/CB tables are a guide only.</p>