Most UK applicants apply to university before they've sat the final exams their offer depends on -- so instead of a finished transcript, their application carries a predicted grade: a UK teacher's estimate, submitted directly through UCAS, of what that student is likely to achieve in a still-unfinished qualification like A-levels. It's a mechanism built for a UK school calendar. A US applicant, who typically already has a completed SAT or ACT score in hand, is applying into a system built around a number that isn't finished yet.
What a predicted grade actually is
A predicted grade isn't a guess pulled from thin air -- UCAS defines it as the grade a student's school or college believes they're likely to achieve "in positive circumstances," submitted by a teacher, tutor, or adviser qualified to judge that student's work. It's entered through the same reference process as your teacher's written recommendation, and it's specifically tied to qualifications that aren't finished at the time of application -- which, for a UK student, usually means their A-levels, since final results don't come out until August, months after offers go out.
Where a US applicant actually fits into this
If you already have a final SAT or ACT score, you're not in the position most UCAS predicted-grade machinery was built for -- you already have the real number. In practice, US applicants submit their actual test scores already achieved, plus predicted grades or planned dates for any tests still to come during senior year, directly on the UCAS application. The University of Edinburgh's own international-applicant guidance, for example, tells US high schoolers to list every test taken and its score, and the tests still planned, alongside predicted grades for those that haven't happened yet -- so the "predicted" piece doesn't disappear for a US applicant, it just narrows to whatever part of your record genuinely isn't finished yet.
Conditional vs. unconditional offers
A conditional offer is contingent on hitting specific final results -- a UK applicant with strong predicted grades might get an offer that says, in effect, "yes, if you actually achieve what your teacher predicted." An unconditional offer has no such condition attached. For a US applicant with an already-completed SAT or ACT score, an offer is more likely to be conditional on something else entirely -- final high school GPA, AP results, or a specific admissions test score -- rather than a predicted grade in the UK sense, since the number UK predicted grades exist to estimate is one you may not even be submitting.
What this means for you
- Don't assume "predicted grade" means something is being guessed about your SAT/ACT -- if you've already taken and finished the test, that's a real score, not a prediction, and it should be entered as such.
- Talk to your school counselor early about writing your UCAS reference -- they're the one submitting any predicted-grade or supporting information the application needs, the same role a UK teacher plays for a UK student.
- Check exactly what your target university's international admissions office wants from you -- Edinburgh's own guidance is specific to Edinburgh; another university may weight your final vs. predicted numbers differently, so verify per school rather than assuming one rule applies everywhere.
- If you're still waiting on a fall SAT/ACT retake, that's the part that stays genuinely "predicted" until the real score exists -- plan your testing calendar with the October/January UCAS deadlines in mind.