Study Guides
Practical guides to help you understand grades, GPA systems, exams, and academic calculations. Pair every guide with a free calculator — the math, the tables, and the edge cases explained properly.
GPA & Grading
How grades work in the US, how to convert them, and what they really mean.
How GPA Is CalculatedThe formula, the steps, and three real examples — semester, cumulative, and weighted.US Grading System ExplainedLetter grades, plus/minus, weighted vs unweighted, and the 4.0 scale from A+ to F.High School Grading ScaleHow US high schools assign grades — GPA scales, letter grades, and what colleges look for.Weighted vs Unweighted GPAHonors, AP and IB weighting — and why colleges often re-weight your GPA.How to Convert Percentage to GPAStandard conversion tables for 100-point, 10-point, and 7-point scales.What Is a 4.0 GPA?The perfect GPA — letter grade, percentage, and what it means for college admissions.What Does a 3.5 GPA Mean?Where 3.5 sits on the scale, letter grade equivalent, and what it means for college admissions.GPA vs CGPATwo terms, two systems — what they measure and how they differ.Term GPA vs Cumulative GPAWhat's the difference and why both matter for your transcript.How to Raise Your GPAThe math of GPA recovery — how much you can move per semester, grade replacement, and high-leverage tactics.What Is a Good GPA in College?National averages, honors thresholds, and which GPA cutoffs actually matter for jobs and grad school.What GPA Do You Need for Grad School?Minimum GPA requirements for master's, PhD, law, and medical school — and what to do if you're below the cutoff.CGPA to Percentage by UniversityConversion formulas for CBSE, Anna University, VTU, Mumbai University, and more.10-Point CGPA to 4.0 GPAThe formula, full lookup table, 12-point scales, and when WES uses different numbers.What Is Cumulative GPA?The average of all your grades — what it means, how to calculate it, and why it matters.Major GPA vs Overall GPAWhich one grad schools and employers care about — and when to highlight each.GPA指南（中文）· GPA是什么意思GPA怎么算、中国百分制成绩怎么换算成美国GPA、申请研究生要求多少——中文完整指南。
UK Education
GCSE, A-Level, and UK degree classification — explained for students and applicants.
UK Grading System ExplainedThe complete guide: GCSE 9–1, A-Level A* to E, and degree classification.How GCSE Grades WorkWhat counts as a pass, grade boundaries, and what you need for sixth form or college.What Is a Grade 4 in GCSE?The standard pass — what it unlocks for sixth form, college, university and jobs.GCSE Pass Mark: What Percentage Do You Need?Pass marks aren't 50% — real AQA and Edexcel data by subject and tier.GCSE Grade Boundaries 2026What grade boundaries mean, how they're set, and what to expect for 2026.Bad GCSE Results — What to DoFailed a GCSE or got lower grades? Step-by-step plan for resits, retakes, and alternatives.A-Level Grades ExplainedA* to E, UCAS Tariff points, and how universities use A-Level results.What Is a Good A-Level Grade?What each A-Level grade is worth, UCAS points, and what universities actually look for.Is E a Pass at A-Level?What an E grade means, whether it counts as a pass, and what your options are.A-Level Grade Boundaries 2026How boundaries are set by AQA, Edexcel, OCR and WJEC, with 2026 expectations.UCAS Points to GradesWhat 96, 104, 112, 120 & 128 UCAS points mean in A-Level grades — current tariff tables.Bad A-Level Results — What to DoStep-by-step plan for results day: Clearing, appeals, resits, and alternatives.Missed Your University Offer?What to do when your firm or insurance choice falls through — Clearing, gap years, and more.UK Degree Classification ExplainedFirst, 2:1, 2:2, Third — what each one means in practice.UK Degree to US GPAConvert First, 2:1, 2:2 and Third to the US 4.0 scale — WES, Fulbright and university tables.What Is a First-Class Degree?70%+ classification, US GPA equivalents, and how to achieve one.What Is a 2:1 Degree?60–69% Upper Second — the standard 'good degree' threshold.What Is a 2:2 Degree?50–59% Lower Second — what it means and how to strengthen your application.
Exams & SAT
Test, exam, and assignment math — what's needed, what counts, how to plan.
What Grade Do I Need on My Final?The exact formula for the score you need to hit your target — simple and weighted modes.How to Grade a TestOne formula, A–F scale, and teacher shortcuts for grading any test fast.Exam Grade CalculationHow raw marks become letter grades, and what curves and rubrics really do.What Is a Good SAT Score?2026 SAT score guide with percentiles, college ranges, and section-by-section targets.SAT Score Range 2026What SAT scores mean, how to read your score report, and how percentiles work.SAT vs ACTSide-by-side comparison — format, timing, scoring, which test is better for you.SAT to GPA ConversionCan you convert SAT scores to GPA? Approximate tables and why it's imprecise.
Student Life
Light reads and countdowns for the academic year.
PDF Tools
How-to guides for working with PDF files — merge, split, compress, watermark and more.
How to Merge PDF FilesCombine multiple PDFs into one document — no uploads, no software.How to Split a PDFDivide a PDF into multiple files by page range or extract every page.How to Rotate PDF PagesFix upside-down or sideways scanned documents.How to Delete PDF PagesRemove unwanted pages from any PDF.How to Extract PDF PagesSave specific pages as a new PDF.How to Reorder PDF PagesDrag and drop to rearrange pages.How to Convert JPG to PDFTurn images into a single PDF document.How to Convert PDF to JPGExtract each PDF page as a high-quality image.How to Add Page Numbers to a PDFNumber pages for reports, legal docs, and theses.How to Watermark a PDFAdd DRAFT, CONFIDENTIAL, or branding text.How to Remove PDF MetadataClear hidden author and software info before sharing.How to Compress a PDFReduce file size while preserving quality.
Popular Tools
The calculators that pair with these guides.
GPA ConverterConvert between 4.0, 4.3, 5.0 scales and percentage.Semester GPA CalculatorAdd courses + credits to get your semester GPA.Final Grade CalculatorWhat score do you need on the final to reach your target grade?GCSE Grade CalculatorEstimate your GCSE grade on the 9–1 scale.SAT Score CalculatorEstimate your Digital SAT score from raw marks.