Middle School GPA Calculator
Estimate a simple, equal-course GPA from letter grades or percentage grades using the 4.0 conversion scale shown on this page. School policies vary, so compare the result with your own middle school’s official grading and GPA rules.
For this calculator, each entered grade is converted to grade points, the points are added, and the total is divided by the number of courses entered. It is an equal-course estimate, not a universal school GPA policy.
Sum of Grade Points ÷ Number of CoursesHow this GPA was calculated
- Enter your grades above to see the calculation unfold step by step.
Middle School GPA Rules Can Differ by District
This calculator deliberately shows its scale instead of presenting one grading policy as universal.
GPA is generally an average of grade-point values, but the rules used to create those values can differ. Fairfax County Public Schools, for example, publishes a 4.0 scale with plus and minus grades such as A− = 3.7 and B+ = 3.3. Its TJHSST admissions guidance also uses an unweighted middle-school core GPA for a specific admissions purpose.
Prince George’s County Public Schools uses a different middle-school policy: report-card grades do not use plus or minus signs, and eligible honors courses receive an additional 0.5 grade point. That is why this page should be treated as a configurable-style estimate based on the scale displayed here, not as an official GPA for every U.S. middle school.
If your school uses different cutoffs, course credits, weighting, or excluded grades, follow the school or district policy rather than this calculator’s default conversion.
How This Middle School GPA Calculator Turns Grades Into a GPA
Each letter or percentage grade converts to a grade point on a 4.0 scale, and your GPA is simply the average of those grade points across every course you enter.
The formula
GPA = Sum of Grade Points ÷ Number of Courses. Every entered course counts equally in this calculator.
Letter grades vs. percentages
Both modes use the conversion table shown here. Percentage mode maps each percentage to the corresponding grade-point band before averaging.
Grade point scale
| Grade | Points |
|---|---|
| A / A+ (93–100) | 4.0 |
| A- (90–92) | 3.7 |
| B+ (87–89) | 3.3 |
| B (83–86) | 3.0 |
| B- (80–82) | 2.7 |
| C+ (77–79) | 2.3 |
| C (73–76) | 2.0 |
| C- (70–72) | 1.7 |
| D+ (67–69) | 1.3 |
| D (60–66) | 1.0 |
| F (below 60) | 0.0 |
What this doesn’t include
School-specific weighting, course-credit weighting, excluded-grade rules, or school-specific rounding conventions.
Middle School GPA Calculator Examples
These examples use this page’s displayed conversion scale and equal course weighting.
Five A grades and one A−
This is a simple equal-course average under the scale used by this calculator.
B-heavy six-course schedule
Plus and minus grades affect the estimate because this calculator assigns them distinct point values.
Three percentage grades
The other fields are blank, so they are excluded rather than counted as zero.
Mistakes to Avoid With This GPA Calculator
Typing a zero instead of leaving a course blank
Entering “0” for a class you haven’t finished yet counts as an F and drags the GPA down sharply. Leave the field empty instead — blank courses are automatically excluded from the average rather than treated as failing grades.
Confusing weighted and unweighted GPA
This calculator always uses a flat 4.0 scale with no bonus points for honors or gifted courses. If your school does weight certain classes, the GPA on your official transcript may run higher than the number shown here.
Ignoring the plus/minus difference
An A- is worth 3.7 points rather than a full 4.0, and a B+ is worth 3.3 rather than 3.0. Rounding a plus or minus grade to the nearest whole letter, instead of entering it exactly, can shift the final GPA by a few hundredths.
Assuming every school uses the same percentage cutoffs
This calculator uses the percentage bands displayed in its table. Districts can use different cutoffs, so grades near a boundary may convert differently under your school policy.
Expecting credit-hour weighting
A full-year course and a single-semester elective count equally here, since this tool doesn’t apply credit-hour weighting. Schools that weight by credit hours will calculate a GPA that differs slightly from this simple average.
Middle School GPA Calculator: Frequently Asked Questions
Does every middle school use an unweighted GPA?+
What if I have fewer than six courses?+
What if my school uses a different percentage scale?+
Does a plus or minus really change the GPA?+
Can I use this calculator for high school GPA too?+
About the Person Behind This Calculator
Related Education Calculators
Grade Scale and GPA References
These references show why a middle-school GPA calculator needs an explicit scale and a school-policy disclaimer.