About
These calculators are small, single-purpose tools that run entirely in your browser.
What this site is
A set of small GPA and grade calculators. Each page does one calculation, explains the formula it uses, and shows a worked example so you can check the result by hand. No account, no sign-up, no upload of your transcript.
Why the pages are so specific
A single “GPA calculator” page has to guess which scale you are on. Splitting the work by situation — high school with honors weighting, college with credit hours, cumulative across terms, a course grade from weighted categories, the score needed on a final — means each page can state its assumptions instead of averaging them into a vague answer.
The formulas in use
- Semester or term GPA: Σ(grade point × credits) ÷ Σ(credits).
- Weighted GPA: the same, with honors +0.5 and AP/IB +1.0 per course, capped at 5.0.
- Cumulative GPA: (old GPA × old credits + new quality points) ÷ total credits.
- Course grade: Σ(score × weight) ÷ Σ(weights entered).
- Score needed on a final: (target − current × (1 − w)) ÷ w.
The grade point table is the common US 4.0 scale (A = 4.0, A− = 3.7, and so on). Schools that use a 4.3 scale, a 6.0 scale or a different letter mapping will produce different numbers — the formula above is right, the table may not match your institution.
What a calculator cannot tell you
Whether a GPA is “good” depends on the school, the major and the program you are applying to, and selective institutions recalculate grades using their own rules. Admissions decisions, scholarship thresholds and academic standing are set by people reading your transcript, not by arithmetic. Treat every number here as a well-defined calculation on the inputs you typed, and nothing more.
How it is built
Static HTML with one small JavaScript file. The calculations run in your browser; nothing you type is sent anywhere. That also means the site works offline once loaded and stays fast on a phone.
Accuracy and corrections
If a formula on a page disagrees with your school's published policy, your school is right and the page should be fixed. The worked examples are computed by hand and included so that a wrong formula is easy to spot.