Free Student Tools
Use SubjectBuddy tools to calculate grades, plan GPA goals, review essays, estimate speech timing, and make academic work easier to manage. Every tool is free, crawlable, and available without login.
Grade & GPA Tools
Calculate class grades, semester grades, final exam targets, letter grades, and cumulative GPA.
Grade Calculator
Calculate current grade, weighted grade, final exam score needed, and test percentage with one student-friendly calculator hub.
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Semester Grade Calculator
Calculate your final semester grade using quarter grades, final exam scores, assignments, projects, and weighted grade components.
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Midterm Grade Calculator
See how your midterm exam score affects your updated course grade and what to improve before finals.
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Final Grade Calculator
Find what score you need on your final exam to reach your desired class grade, or calculate your overall final grade after finals.
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Letter Grade Calculator
Convert a percentage score into an estimated letter grade, GPA equivalent, and grade meaning.
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Cumulative GPA Calculator
Calculate cumulative GPA across multiple semesters using semester GPA and credit hours.
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Assignment Grade Calculator
Calculate an assignment grade from points earned, total points, weight, and percentage score.
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GPA Calculator
Calculate semester GPA, cumulative GPA, college GPA, high school GPA, and weighted GPA from courses, credits, and grades.
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College GPA Calculator
Calculate college GPA using course credits, grade points, and semester totals.
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Essay & Writing Tools
Review essays, edit drafts, and improve writing clarity with ethical student-focused tools.
AI College Essay Reviewer
Paste a college essay and get instant heuristic feedback on clarity, structure, grammar, tone, and personal voice.
AI college essay reviewer
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College Essay Editor
Check essay word count, structure, readability, tone, and editing priorities before submission.
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Cursive Generator
Turn normal text into cursive-style writing and copy-paste cursive names, words, sentences, and creative student project headings.
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Grammar Checker
Check grammar, punctuation, clarity, and sentence issues before submitting student writing.
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Paraphrasing Tool
Rewrite sentences for clearer academic wording while preserving the original meaning.
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Word Counter
Count words, characters, paragraphs, and estimated reading time for essays and assignments.
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Words to Pages Calculator
Estimate how many pages 500, 1000, 1500, or 2000 words will make based on spacing, font size, and academic formatting.
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Pages to Words Calculator
Estimate how many words are in 1, 2, 5, or 10 pages based on spacing, font size, and academic formatting.
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Reading Time Calculator
Estimate how long it takes to read pasted text, a word count, or pages using reading speed and words per page.
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Essay Title Generator
Generate clear essay title ideas for academic drafts, presentations, and student projects.
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Speech & Presentation Tools
Estimate speech word counts, speaking time, and presentation length before rehearsal.
Speech Word Counter
Paste a speech to count words, characters, and estimated speaking time at slow, average, and fast pace.
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Speech Time Calculator
Convert words to minutes, paste a script to estimate speaking time, or calculate how many words you need for a timed speech.
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Math Tools
Calculate percentages, square roots, fractions, scientific expressions, and algebra formulas.
Racine Carrée Calculator
Calculate square roots instantly and learn racine carrée examples, perfect squares, decimals, and negative square roots.
racine carree calculator
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Square Root Calculator
Calculate square roots, check perfect squares, and review quick square root examples.
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Percentage Calculator
Calculate percentages, percentage changes, grade percentages, and weighted percentage values.
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Scientific Calculator
Use a student scientific calculator for math expressions, powers, roots, and study checks.
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Fraction Calculator
Review fraction operations, simplification, mixed numbers, and related arithmetic tools.
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Quadratic Formula Calculator
Use the quadratic formula to review algebra steps, roots, and discriminant examples.
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AP Score Calculators
Estimate AP practice scores and compare AP grading scale guidance across popular exams.
AP Bio Score Calculator
Estimate your AP Biology score from practice multiple-choice and free-response scores using common AP Bio exam weighting.
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APUSH Score Calculator
Estimate your AP U.S. History score from MCQ, SAQ, DBQ, and LEQ practice scores using common APUSH exam weighting.
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AP Chem Score Calculator
Estimate an AP Chemistry practice score and compare it with related AP score calculators.
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AP Lang Score Calculator
Estimate an AP English Language practice score and review related AP score tools.
AP Lang score calculator
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AP CSP Score Calculator
Estimate an AP Computer Science Principles practice score and browse related AP tools.
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AP Psych Score Calculator
Estimate an AP Psychology practice score and compare it with other AP score calculators.
AP Psych score calculator
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AP Human Geography Score Calculator
Estimate an AP Human Geography practice score and review related AP score calculators.
AP Human Geography score calculator
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AP Grading Scale
Review the AP grading scale from 1 to 5 and understand how AP score estimates are interpreted.
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