College, major & career discovery
Explore Colleges, Majors & Careers
A field guide for the decisions that come before the application: what your grades actually add up to, what your test scores mean, and which majors and careers fit the way you like to work.
How this module works
Measure first, then explore
Most college-search sites hand you a ranked list before you know where you stand. This module runs the other way round. Every calculator here takes numbers you already have — your course grades, your official section scores — and turns them into the single figure an admissions reader will see. Then the guides explain what that figure is worth and where it stops mattering.
Every page is a single file that runs entirely in your browser. There is no account, no upload, and no server call: your grades stay on your device. Each tool states its assumptions on the page and links to the official body it follows, because scoring rules genuinely differ between schools, testing agencies and countries — and two of them changed in 2026.
Two scoring rules changed recently — check yours
TOEFL iBT: as of 21 January 2026, section and overall scores are reported on a 1–6 scale in half-point increments; the overall score is the average of the four sections rounded to the nearest half band. A comparable 0–120 score is still reported during a two-year transition period.
ACT Superscore: on the enhanced ACT, the Superscore Composite averages English, Math and Reading and divides by three. Science no longer counts toward the composite — it feeds the STEM score instead. The legacy ACT still averages all four sections. Sources are listed at the foot of this page.
Grades & GPA
11 pagesThe number every US admissions reader looks at first — and the four different ways schools calculate it.
GPA Calculator
Enter your courses, credits and letter grades to get a semester GPA and a running cumulative GPA on the 4.0 scale.
Open tool → 02 ToolWeighted GPA Calculator
See your weighted and unweighted GPA side by side, with adjustable Honors, AP and IB bonus points.
Open tool → 03 ToolUnweighted GPA Calculator
Calculate your GPA on a standard 4.0 scale that treats every course equally — the figure colleges use to compare applicants fairly.
Open tool → 04 ToolHigh School GPA Calculator
Track your cumulative GPA across all four years of high school, semester by semester, and see how colleges recalculate it.
Open tool → 05 ToolPercentage to GPA Calculator
Convert percentage marks or a 10-point CGPA into a 4.0-scale GPA, with the conversion rule shown in full.
Open tool →Is a 3.5 GPA Good?
What a 3.5 means in high school versus college, how it reads against course rigour, and when it stops being the deciding factor.
Read the guide →Standardised test scores
07 pagesCombine, superscore and convert official section scores using each testing body's published rule — no raw-score guesswork.
SAT Score Calculator
Total your Reading & Writing and Math section scores, superscore across test dates, and work out the section score you still need.
Open tool → 08 ToolACT Superscore Calculator
Build a Superscore Composite from up to six sittings, under both the enhanced ACT rule and the legacy four-section rule.
Open tool → 09 ToolIELTS Band Score Calculator
Average your four section bands and apply the official rounding rule, including the .25 and .75 edge cases people get wrong.
Open tool → 10 ToolTOEFL Score Calculator
Work out your overall score on the current 1–6 band scale, or total four section scores on the legacy 0–120 scale.
Open tool → 11 GuideWhat Is a Good SAT Score?
The national average sits near 1050, but elite colleges expect 1500+. 2026 percentile benchmarks by school tier.
Read the guide → 12 GuideSAT to ACT Concordance Table
Convert an SAT score to its ACT equivalent using the official 2018 concordance, with the methodology explained.
Read the guide → 13 GuideDuolingo English Test Score Chart
See how Duolingo English Test scores align with IELTS and TOEFL bands, and which universities accept DET.
Read the guide →Majors & careers
07 pagesWork out which subject families suit you, then read the comparisons that decide the close calls.
College Major Quiz
A 24-question interest inventory that scores you across six work-style themes and maps the results onto major families.
Take the quiz → 15 GuideComputer Science vs Software Engineering
Curriculum, accreditation, maths load and career paths compared — and how to tell which degree a given job actually wants.
Read the guide → 16 GuideHardest and Easiest College Majors
Compare majors by real registrar GPA data and NSSE study-hour survey results, not internet folklore about who has it hardest.
Read the guide → 17 GuideEconomics vs Finance
Economics leans theory and policy; finance leans applied valuation and corporate practice. Curriculum, careers and how to choose.
Read the guide → 18 GuideBiology vs Biochemistry
Biology covers organisms and ecosystems; biochemistry adds a much heavier chemistry sequence. Compare curriculum and pre-med fit.
Read the guide → 19 GuidePsychology BA vs BS
The two degrees differ in science intensity, language requirements and graduate-school fit. See which suits your goals.
Read the guide → 20 GuideNursing vs Pre-Med
A BSN is a complete professional major leading to RN licensure in four years; pre-med is prerequisite coursework before medical school.
Read the guide →Reference
What each score is measured on
| Measure | Scale | Parts | How the total is formed |
|---|---|---|---|
| US GPA | 0.0 – 4.0 | per course | Credit-weighted mean of grade points; weighted scales add bonus points for Honors, AP and IB |
| SAT | 400 – 1600 | 2 | Reading & Writing plus Math, each 200–800, added together |
| ACT | 1 – 36 | 3 or 4 | Mean of section scores, rounded to the nearest whole number |
| IELTS | 0 – 9 | 4 | Mean of the four bands, rounded to the nearest half band |
| TOEFL iBT | 1 – 6 | 4 | Mean of the four sections, rounded to the nearest half band |
Each calculator links to the testing body's own documentation, and none of them reproduce raw-score conversion tables — you enter official section scores and the tool applies the published rule.
Questions