About Calculate Your Grade

Calculate Your Grade is a free set of grade and GPA calculators built to take the guesswork out of your marks. There’s no sign-up, nothing you type is stored, and the math is shown on every page so you can trust the answer.

Our mission

Grades cause a surprising amount of stress, and a lot of it comes down to one question: where do I actually stand? Working that out by hand means juggling weights, percentages, and a GPA scale that changes from one school to the next. Our goal is simple. Give students, parents, and teachers a clear, accurate answer in a few seconds, for free, without asking anyone to create an account or hand over personal information.

Who is behind Calculate Your Grade

S. M. Mahmudul Hasan

Founder · Engineer and English instructor · Dhaka, Bangladesh

Calculate Your Grade is built and run by Mahmudul Hasan. His background is in engineering, from hands-on project work and a research thesis now under review for publication to everyday tools like MATLAB and Excel, so getting the numbers right is second nature to him. He also teaches. As an English and IELTS instructor, he spends his days planning lessons, assessing student performance, and explaining scores and band results to learners.

That combination is the whole point. An engineer’s habit of double-checking keeps the formulas correct, and a teacher’s day-to-day experience with grades and scores keeps the tools genuinely useful. Mahmudul designs and develops the site himself, so the math, the privacy choices, and the plain-English explanations all come from one person who cares about getting them right.

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How we keep the calculators accurate

The everyday tools use the standard grading math schools actually use: weighted averages for course grades, the common 4.0 GPA scale with its plus and minus steps, and straightforward percentage and points conversions. The exam and school calculators follow the published rules for that exam or school instead: College Board’s section weights for each AP exam, the IB’s points and diploma conditions, the degree-class boundaries UK universities use, the University of Florida’s own catalog for the UF calculator, Arizona State University’s published policies for the ASU calculator, The University of Texas at Austin’s General Information Catalog for the UT calculator, Purdue University’s 2026-2027 University Catalog for the Purdue calculator, Louisiana State University’s 2026-2027 General Catalog, with LOSFA’s TOPS renewal rules, for the LSU calculator, Rutgers University’s grading policy and 2026-2027 undergraduate catalogs for the Rutgers calculator, the University of Virginia’s Undergraduate Record 2026-2027 for the UVA calculator, the University of Houston’s 2026-2027 Undergraduate Catalog for the UH calculator, the University of Georgia’s Policy Library and Registrar rules, with the Georgia Student Finance Commission’s 2026-2027 HOPE regulations, for the UGA calculator, the University of Tennessee, Knoxville’s 2026-2027 Undergraduate Catalog and One Stop pages, with the Tennessee Student Assistance Corporation’s lottery scholarship rules, for the UTK calculator, UC San Diego’s General Catalog, TritonLink and advising pages, with the Registrar’s Latin honors cutoffs, for the UCSD calculator, the University of Wisconsin–Madison’s Office of the Registrar, Faculty Legislation II-103 and the Guide’s school and college policies for the UW–Madison calculator, Florida State University’s 2026-2027 General Bulletin and Office of the University Registrar for the FSU calculator, Clemson University’s 2026-2027 Undergraduate Catalog, Office of the Registrar, Undergraduate Learning and Office of Student Financial Aid for the Clemson calculator, the University of Illinois Urbana-Champaign’s 2026-2027 Student Code, Office of the Registrar, college advising pages and Undergraduate Admissions for the UIUC calculator, the University of Missouri’s 2026-2027 Academic Catalog, Faculty Handbook, Office of the University Registrar, Student Honors and Mizzou Admissions for the Mizzou calculator, and Texas A&M University’s 2026-2027 Undergraduate Catalog, Student Rules, Office of the Registrar and Aggie One Stop for the TAMU calculator. Four habits keep them trustworthy:

We show our work. Each calculator explains its formula and walks through a worked example, so you can check the result by hand whenever you want to.
We respect that schools differ. Grading scales aren’t universal, so rather than pretend there’s one right answer, we explain the common variations and let you adjust the scale.
We keep it instant and private. The calculators run entirely in your browser, so nothing you enter is sent to us or saved anywhere. You can read the details in our privacy policy.
We keep pages current. Exam rules and score data change every year, so we update the AP pages each exam season and re-check our sources when they change. Our college grading scales study, for example, was read from each college’s own catalog and re-checked against every source on 26 September 2026.

Why you can trust us

It’s free, with no account. You never have to sign up or log in to use a calculator.
Your numbers stay yours. Calculations happen on your device, so your grades never leave your browser.
It’s transparent. The formulas and examples sit right on the page, not behind a black box.
A real person stands behind it. The site is built and maintained by a named founder, not an anonymous brand.

What you’ll find here

Calculate Your Grade launched in 2026 and now has more than 50 calculators, each with a guide that explains how it works:

Course grades: weighted, final grade, test, assignment, midterm, quarter, semester, what-if and points-based calculators, plus letter grade and percentage tools.
GPA: GPA, cumulative, college, high school and middle school GPA calculators, a grade to GPA converter, and UF, ASU, UT, Purdue, LSU, Rutgers, UVA, UH, UGA, UTK, UCSD, UW–Madison, FSU, Clemson, UIUC, Mizzou and TAMU GPA calculators built on each university’s own rules.
Curves and scales: grade curve and bell curve calculators, a grading scale chart, and percentage to letter grade conversion.
Exams: an AP score calculator with 14 subject versions, an IB exam score calculator that totals your diploma points out of 45, and a UK university degree class calculator.
Research: our study of what percentage is an A in college, read from the catalogs of the 100 largest US colleges.

New calculators are added when we can do them properly, with the rules checked against their official source. If there’s one you need, tell us.

Get in touch

Have a question, spotted a mistake, or want a specific calculator built? Email getintouch@calculateyourgrade.com. We read every message, and feedback from students and teachers is exactly how the site gets better. You can also reach us through our Contact page or explore all the tools on the homepage.

Page last updated: November 8, 2026.