That half point between 89.5 and 90 is the difference between a transcript that says A- and one that says B+, and sometimes the difference between meeting a scholarship floor and missing it by a hair. Whether you get the bump is not really a fact about your grade. It is a fact about your school’s rounding policy.
This calculator takes one number and shows you the result under four policies at the same time: round half up, round to the nearest whole number, always round down, always round up. You line the four rows up against whatever your syllabus actually says, and instead of hoping you know where you stand.
One input, a grade between 0 and 100, and it runs in your browser. Nothing is stored and nothing goes anywhere.
Enter your grade and this calculator checks whether it rounds up under common rounding policies. Some schools round 89.5 up to 90 (A-), while others only round at whole number boundaries. See where your grade lands under each policy.
The four policies, and what each really does
Round half up here works at one decimal place. 89.49 becomes 89.5, 89.5 stays 89.5, 88.5 stays 88.5. It tidies the number rather than pushing it across a grade boundary, so for a grade you typed in at 89.5 that first row will come back as 89.5. The row that moves it to 90 is round to nearest whole. Read the result column rather than the policy name.
Round to nearest whole is the one most people mean when they argue about this. 89.5 goes to 90, 89.4 goes to 89, 79.52 goes to 80. It is the row that decides the classic boundary case.
Always round down floors it. 89.9 becomes 89. Some departments do this on purpose, because a flat no-rounding rule is easy to defend when forty students ask the same question in the last week of term.
Always round up raises it. 89.1 becomes 90. Rare, but it exists, and when it exists in your favour it is worth knowing that it exists at all.
A worked example
Type 89.5. The four rows come back as 89.5, 90.0, 89.0, 90.0. Two of them hand you the A-, two do not, and nothing about the split has anything to do with how well you answered question 4.
Type 89.4 and you get 89.4, 89.0, 89.0, 90.0. Only the always-round-up row rescues it, which is the row least likely to be written into your syllabus.
Type 88.5 and it reads 88.5, 89.0, 88.0, 89.0. Now the same four policies that all agreed about the 89 boundary are split again at the B+ boundary. That is the part worth noticing. A rounding policy is not a mild preference you can ignore, it is a rule that only bites at exactly the marks you care about.
At 91.3 the rows read 91.3, 91.0, 91.0, 92.0 and none of it matters. If your grade sits well away from a boundary, close the table and go and do the work.
Finding out which policy you are under
Look at the syllabus first. Grading sections carry a rounding line more often than people expect, and a lot of students simply never turn that far. If it is not written down, ask in one short sentence, and ask before marks are posted rather than after, because the conversation changes shape once the number is final.
Assume nothing until you have an answer. If you cannot find the policy anywhere, plan around no rounding and treat any bump as a bonus, so the surprise lands on the good side.
Two honest caveats on top of that. Admissions offices frequently rebuild GPAs using their own method, and their rebuild may not round at all, so a transcript that reads 90.0 at your school can arrive in their system as 89.5. And the rule that counts is the published one. A teacher who rounds one student up out of kindness is not a policy you can plan a scholarship cutoff around.
The place this gets genuinely contentious is the exact half. 89.5, 79.5, 69.5 and 59.5 are the four numbers where round half up and always round down give opposite answers, and they are exactly the numbers people get emails about in January.
Other tools
- GRE percentile calculator — what your score means against everyone who sat it
- Group project splitter — when the grade depends on who did the work
- Hemocytometer cell count — for the lab courses where the grade is data
Frequently asked questions
Does 89.5 round up to 90?
Sometimes. Round to nearest whole gives 90.0 and always round up gives 90.0, always round down gives 89.0, and the first row works to one decimal so it stays at 89.5. The four rows are the answer, and which one counts is your school’s call.
What is the most common rounding policy?
The result table carries the note that many US high schools use round half up while some only round at whole numbers. Treat that as a starting point rather than a fact about your school, and go and check the actual document.
Do colleges round grades?
Some do and some recalculate everything their own way, which may include no rounding at all. If a program states a minimum GPA, ask whether the figure they use is the one printed on your transcript or one they work out themselves.
Can I ask my teacher to round my grade up?
You can ask once, politely, and before marks are final. Plenty of instructors have a fixed rule and will not move for anyone, so ask with the understanding that the honest answer might be no, and that earning the higher grade outright beats relying on a rounding line.
What if my grade is exactly on a boundary?
Run it here, see all four results, then find out which policy applies rather than picking the row you like the look of. On 89.5, 79.5, 69.5 or 59.5 the policy is doing all the deciding, so it is the one thing worth pinning down.