GPA Calculator
Your GPA is a credit-weighted average of your grade points. Convert each letter grade to points on the 4.0 scale, multiply by that course credit hours, add the results, and divide by the total credit hours you attempted. The calculator below does exactly that, and updates as you type.
Credit hours are the part people leave out, and they are what makes the number move. A four-credit course counts twice as heavily as a two-credit one, so a B in a lab science pulls harder than an A in a one-credit elective. If you average the letters on their own you will get a number your registrar does not recognise.
Calculate your GPA
Add a row per course. Credits can be fractional — use whatever your transcript shows.
Letter grades on the 4.0 scale
Nearly every US institution converts letters to points on the same scale. Where schools differ is at the edges: some award a flat 4.0 for an A+, others allow 4.3, and a few omit minus grades entirely. Use the table your own registrar publishes when the two disagree.
| Letter | Points | Letter | Points |
|---|---|---|---|
| A | 4.0 | C | 2.0 |
| A- | 3.7 | C- | 1.7 |
| B+ | 3.3 | D+ | 1.3 |
| B | 3.0 | D | 1.0 |
| B- | 2.7 | D- | 0.7 |
| C+ | 2.3 | F | 0.0 |
An A+ is treated as 4.0 here. Schools that cap the scale at 4.0 do not let a single outstanding grade lift you above it.
Semester GPA versus cumulative GPA
A semester GPA covers one term. A cumulative GPA covers every term you have completed, and it is the number that appears on applications, scholarship thresholds and academic standing letters.
To calculate a cumulative figure in the tool, enter every course you have taken rather than only this term. The alternative is to combine terms by hand: multiply your old GPA by the credit hours it was based on, do the same for the new term, add both totals and divide by the combined credit hours. The result is identical, because a cumulative GPA is simply one long credit-weighted average.
This is also why a single term moves your cumulative number less and less as you progress. In your first semester, twelve credits are your entire record. By your final year, the same twelve credits are a small slice of a hundred, and a strong term can only nudge the average.
What happens to withdrawals, pass or fail and repeats
Not every entry on a transcript enters the average. The common rules across US institutions run as follows, though each one is a matter of local policy rather than a national standard.
- A withdrawal recorded as W usually carries no grade points and no attempted credits, so it does not change your GPA at all — though it does affect completion-rate rules used for financial aid.
- A course taken pass or fail normally awards credit without grade points, so a P is invisible to the average. A failing grade in the same course often is counted.
- An incomplete is excluded until it resolves, at which point the final grade applies retroactively to that term.
- A repeated course is handled one of two ways: grade replacement, where only the newer attempt counts, or grade averaging, where both remain. Which one applies is set by your institution, and the difference is large.
- Transfer credits frequently bring credit hours without grade points, so they advance you toward a degree without moving your GPA.
Working out the grade you need
The same arithmetic answers the more useful question: what do I need next term to reach a target. Multiply your target GPA by your projected total credit hours to get the grade points you need in total, subtract the grade points you already hold, then divide by the credit hours remaining.
Suppose you hold a 3.1 across 60 credits and want a 3.3 by the time you finish 90. You need 3.3 times 90, which is 297 grade points. You already have 3.1 times 60, which is 186. That leaves 111 points across 30 credits — an average of 3.7, or roughly an A- in everything. Doing that sum early is what turns a vague target into a plan, and occasionally reveals that the target is out of reach in the time remaining.
Run this before registration rather than after. Credit hours are the lever you can still pull.
Reading the number honestly
A GPA compresses years of work into two decimal places, and it loses a great deal on the way. Admissions readers know this, which is why they ask for a transcript rather than only the average.
An upward trend across four semesters reads very differently from the same average produced by a strong start and a weak finish. A 3.4 earned in a demanding major is not the 3.4 earned in an easier one. Two students with identical averages can have taken entirely different risks. Where an application allows context, an honest sentence about a difficult term usually serves you better than hoping the reader does not notice it.
Frequently asked questions
It depends entirely on what you want it for. Around 3.0 is the common floor for good academic standing and many scholarships; competitive graduate programmes often expect 3.5 and above; some professional programmes publish their own minimums. Check the threshold that actually applies to you rather than a general benchmark.
On an unweighted scale, no. Most institutions cap an A+ at 4.0, so it looks identical to an A in the calculation. A small number award 4.3. Only weighted scales, which add points for course rigour, routinely produce averages above 4.0.
You cannot simply average the semester figures unless every term carried the same number of credits. Multiply each semester GPA by that semester credit hours, add the products, then divide by your total credit hours. Entering every course into the calculator above does the same thing.
Usually not directly, because a W generally carries no grade points and no attempted credits. It can still matter elsewhere: financial aid rules often require you to complete a set percentage of the credits you attempt, and repeated withdrawals can put that at risk.
Only under a grade-replacement policy, where the newer attempt supersedes the older one in the calculation. Under grade averaging, both attempts remain and both count. Both original and repeat normally stay visible on the transcript either way, so check your institution policy before relying on a retake.