GPA Calculator

Add subjects, grades, and credit hours to instantly calculate your semester GPA with a clear summary. A free GPA and semester grade calculator.

Knowing where you actually stand

Most students estimate their GPA wrongly, usually optimistically, because credit weighting is not intuitive: a five-credit module moves your average far more than a two-credit one. Calculating it properly takes two minutes and changes which module you revise first.

What the tool actually does

You enter each module or course, its grade and its credit hours, and the calculator computes your weighted GPA for the term and, if you add previous results, your cumulative GPA across your whole programme so far. It does the credit-weighted arithmetic you would otherwise have to do by hand every time a grade changes.

How GPA is calculated

Each grade maps to a point value, that value is multiplied by the module's credit hours, and the total is divided by total credits. This weighted average is why a poor grade in a large module hurts disproportionately — and why one strong large module can rescue a semester.

A worked example

Suppose you take four modules: a 4-credit module at an A (4.0 points), a 3-credit module at a B (3.0 points), a 3-credit module at a C+ (2.3 points), and a 2-credit module at an A- (3.7 points). The weighted total is (4×4.0) + (3×3.0) + (3×2.3) + (2×3.7) = 16 + 9 + 6.9 + 7.4 = 39.3, divided by 12 total credits, giving a GPA of 3.275 for the term — noticeably different from the simple, unweighted average of the four letter grades, which would suggest a slightly higher 3.25 in this case but can diverge much more sharply when credit values are less even.

Using the number to make decisions

  • Calculate your current GPA before choosing where to put revision hours.
  • Model the effect of a target grade before committing to it.
  • Check cumulative as well as semester GPA — the cumulative moves slowly.
  • Recalculate at the midpoint of the term, not at the end.

Different scales: US, UK and India

4.0 is standard in the US, though some institutions use a 4.3 or 4.5 scale with A+ included, so always check your own institution's exact mapping rather than assuming 4.0 is universal. The UK typically reports classifications (First, 2:1, 2:2, Third) rather than a GPA, though many UK universities now also provide an equivalent for international applications. India commonly uses a 10-point CGPA scale, where grade points are usually converted to a rough percentage by multiplying by 9.5, though the exact multiplier varies by university and should be confirmed against your own institution's official conversion formula rather than assumed.

Why the cumulative GPA moves slowly

If you have completed 90 credits at a 3.4 cumulative GPA and take on 15 more credits this term at a 3.9 average, your new cumulative only shifts to roughly 3.45 — a single strong term rarely rescues a GPA built over several years, which is precisely why tracking it every term, rather than panicking at the end, matters more than any single semester's result.

Common mistakes

  • Averaging letter grades without weighting by credit hours, which distorts the true figure whenever module sizes differ.
  • Forgetting to include a module you failed and retook, when many institutions still count the original attempt in the cumulative average.
  • Assuming your target university or scholarship uses the same scale as your own institution, when many require a documented conversion.
  • Recalculating only at the end of the term, by which point it is too late to redirect effort toward the modules that would move the average most.

Who this suits

Anyone applying to further study, scholarships or jobs that ask for a GPA, and any student who wants to know, mid-semester, which module is actually worth the extra two hours tonight. It is less useful for institutions that grade purely by percentage or classification with no credit-weighted average in their system — check what your own institution actually reports before relying on a GPA figure for anything official.

Frequently asked questions

Does this work for the 4.0 scale?

Yes, and it handles credit-weighted modules correctly rather than a simple average of letter grades. For 10-point systems common in India, use the CGPA-specific settings or the CGPA Calculator, since the underlying point values differ.

Are pass/fail modules included?

Normally they are excluded from the GPA calculation but still count toward total credits earned. Check your institution's exact rules, since some do include pass/fail modules at a fixed point value while others exclude them entirely from both the numerator and denominator.

How do I convert my GPA to a percentage for an Indian university application?

There is no single universal formula — many Indian institutions use CGPA × 9.5 as an approximation, but this is a convention, not a law, and some universities specify their own multiplier. Always check the official conversion method stated by the receiving institution rather than assuming the common formula applies.

What happens to my GPA if I retake a failed module?

Policies vary widely: some institutions replace the original grade entirely, some average the two attempts, and some keep both on record with only the retake counting toward the cumulative GPA. Confirm your specific institution's retake policy before assuming a retake will fully erase the earlier result.

Can I use this to predict my final GPA before graduating?

Yes, by entering hypothetical grades for remaining modules alongside your completed ones, you can model best-case, realistic and worst-case scenarios. This is particularly useful in your final year when you want to know the minimum grades needed on remaining modules to hit a target classification or GPA threshold.

Is my grade data stored anywhere?

By default your entries stay in your own browser. If your account supports syncing, you can opt in to save your history across devices, but nothing is required to be uploaded just to run a calculation.

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