About GradeMate

Last updated: 2026-05-31

GradeMate is a free suite of grade and test score calculators built for U.S. students — from middle school report cards to AP, SAT, and ACT exam day.

Why we exist

Every semester, millions of students lose sleep trying to figure out:

• "What do I need on the final to keep my A?"
• "How many MCQs do I need right to get a 5 on AP Bio?"
• "Is my SAT raw score good enough for the school I want?"

These are five-minute problems. They don't need a $50 prep book or a tutor — they need a calculator that's accurate, mobile-friendly, and free.

That's why GradeMate exists.

What we cover

Grade calculators — for the everyday classroom:

• Final Grade Calculator — know exactly what you need on the final
• Weighted Grade Calculator — custom categories with custom weights
• Semester Grade Calculator — roll quarter grades into a semester
• GPA Calculator — unweighted and weighted, 4.0 and 5.0 scales
• What Grade Do I Need — reverse the math: what's my floor for an A−?

Score calculators — for standardized exams:

• AP Score Calculator (25 subjects) — predict your 1–5 score from MCQ + FRQ
• SAT Score Calculator — reading + math → 400–1600 composite
• ACT Score Calculator — English, math, reading, science → composite

Two product lines, eight calculators, one site.

How accurate are we?

For grade calculators, the math is straightforward arithmetic — what you put in is what you get out. These are as accurate as your inputs.

For standardized test score calculators, we cite the source behind each cutoff table. Some AP subjects use official released College Board scoring worksheets when the worksheet matches the current exam structure; other AP subjects, plus SAT and ACT, remain clearly labeled as unofficial previews or estimates. Every score calculator cites its sources, so you can verify the cutoffs we use.

We update the AP score curves each year as new official scoring guidelines and student reports become available.

How we keep this free

GradeMate is supported by unobtrusive ads placed around — never inside — the calculators. We never break a slider with an ad, never put a "click to see your score" wall, and never sell your data.

If we ever monetize anything beyond ads (e.g., a "save my goals" feature for advanced users), the core calculators will always stay free and ad-supported.

Who we are

GradeMate was founded by educators and engineers who have spent years in U.S. classrooms — teaching, tutoring, and helping students navigate the maze of GPAs, weighted grades, and standardized tests. We built the calculators we wish we'd had as students.

Contact

Found a bug? Have a feature request? Want a calculator for a niche exam we don't cover yet? Tell us via the Contact page.