GPA Calculator

Understanding GPA and How This Calculator Works

What is GPA and why do colleges care?

GPA (Grade Point Average) is a standardized number that represents your academic performance across all your courses. Instead of looking at dozens of individual grades, admissions officers, scholarship committees, and employers use GPA as a quick snapshot of your academic strength. Most systems in the U.S. use a 4.0 scale, where A = 4.0, B = 3.0, C = 2.0, D = 1.0, and F = 0.0. Many schools add precision with plus/minus modifiers: A- might be 3.7, B+ might be 3.3, and so on.

Your GPA appears on transcripts, college applications, scholarship forms, and even job applications for recent graduates. A strong GPA opens doors to competitive programs, merit scholarships, and honor societies. More importantly, tracking your GPA helps you understand where you stand academically and where to focus your effort.

How does this calculator convert grades to GPA?

This tool uses a standard 4.0 grade-to-point conversion table. You enter your course name (optional), credits, and letter grade. The calculator looks up the grade points for each letter grade, multiplies by the credits, and sums up all the quality points. Then it divides by the total credits to produce your GPA. The formula is simple: GPA = Total Quality Points ÷ Total Credits.

Credits (also called credit hours or units) act as weight multipliers. A 4-credit course has twice the impact of a 2-credit course. This is why performing well in high-credit courses matters more than doing well in light electives. If you get a B in a 5-credit course and an A in a 2-credit course, the B pulls more weight in your final GPA.

Weighted GPA: when and how to use it

Some high schools reward students who take challenging courses like Honors, AP, or IB classes by using weighted GPA. In a weighted system, an A in an advanced course might count as 4.5 or even 5.0 instead of 4.0. Because schools use different weighting rules, this calculator offers a simple weighted mode: when enabled, it adds +0.5 to the grade points for any course you mark as "Honors/AP," but caps the result at 4.0 to keep it within the standard range.

Use weighted mode when your school explicitly uses weighted GPA and you want to see how taking advanced courses affects your standing. Use unweighted mode when you're comparing yourself to scholarship requirements that specify a 4.0 scale, or when you want a clean baseline. Always check with your institution's policy if you're submitting GPA for official purposes.

Common mistakes students make

The most frequent error is entering credits incorrectly. If you put "1" for every course when your courses are actually 3 or 4 credits each, the calculator treats all classes equally—which distorts your GPA. Another mistake is mixing grading systems: some schools report numeric grades (like 85% or 92%) instead of letters. You'll need to convert those percentages to letters using your school's scale before entering them here.

Also, many students forget that Pass/Fail courses, withdrawn courses, or transfer credits may not count toward GPA at all. If a course doesn't appear with a letter grade on your official transcript, don't include it in this calculator. When in doubt, follow your institution's GPA calculation policy.

How to use GPA to make better academic decisions

GPA is most useful when it guides smart decisions, not when it causes stress. Use this tool to model scenarios: "If I get a B+ in Physics and an A- in English, what happens to my GPA?" This kind of planning helps you prioritize study time and identify which courses need more focus. A small improvement in a high-credit course can boost your GPA more than acing a small elective.

GPA also helps you spot patterns. If your grades drop every time you overload your schedule, that's a signal to balance your courseload better. If you consistently perform worse in certain subjects, that's a clue to seek tutoring or adjust your study methods early in the semester.

Privacy and accuracy

This GPA calculator runs entirely in your browser. Your course names, credits, and grades are not sent to any server and are not stored by us. You can use this tool as many times as you want without privacy concerns. However, treat the result as an estimate. Your school may use specific rounding rules, different grade-point mappings, or special handling for repeated courses. Always use your official student portal for final GPA decisions and transcript submissions.

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Planning your academic schedule? Try our Percentage Calculator to quickly compute what grade you need on a final exam to reach a target course grade. For wellness during busy semesters, check the BMI Calculator to track your health. And if you're planning study schedules or counting down to important dates, our Days Between Dates tool is helpful.