Education Calculators
Improve your academic planning with our GPA calculator, grade calculator, and study-related tools. Whether you're tracking performance or estimating final scores, Vast Calculators helps you stay ahead in your studies.
About Our Education Calculators
These tools cover the grading systems students actually get judged on: the US 4.0 GPA scale (credit-weighted, with the full letter-to-points table), SAT scoring as defined by the College Board, IELTS band math from the official scoring guide, and journal impact factors as computed in Clarivate's Journal Citation Reports.
One thing worth knowing before you calculate: grading scales vary by institution. A 90% is an A− (3.7) at most US schools but a full A (4.0) at others. Our tools use the most common scales and say so explicitly — always cross-check against your own syllabus or institution's published policy.
All 11 Education Calculators
- Adaptive Grading Calculator This combines a set of graded assessments into one course percentage and converts that percentage to a point on the 4.0 …
- Assignment Grade Calculator This works out the overall mark for a course or module from individual pieces of work that carry different weights. Ente…
- Exam Score Predictor This finds the percentage you have to score on the final exam to finish a course at the grade you are aiming for. Four t…
- Final Grade Calculator The score you need on a final exam to finish a course at your target grade comes from three numbers on your syllabus: th…
- GPA Calculator Enter each course's grade and credit hours for a credit-weighted GPA on the 4.0 or 5.0 scale, with the total credits cou…
- IELTS Score Calculator This turns a set of IELTS results into an overall band score. Enter your raw marks out of 40 for Listening and Reading, …
- Impact Factor Calculator A journal impact factor is the citations recorded in one year to the articles that journal published in the two years be…
- Reading Speed Calculator This measures reading speed in words per minute. Time yourself reading a passage, then enter its word count and the minu…
- SAT Score Converter Convert a raw SAT section mark of 0 to 60 into a 200 to 800 scaled score, or a target score back into the marks that rea…
- Study Planner Generator This splits the study time you have between the tasks on your list. Enter the hours you can study on an average day and …
- Study Time Calculator This estimates the hours a body of material will take to get through. It multiplies your chapter count by how long one c…
Where Most People Start
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GPA Calculator
Credit-weighted GPA with the full US letter-grade table built in.
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SAT Score Converter
Raw-to-scaled conversion following College Board scoring.
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IELTS Score Calculator
Four-band average, rounded the way IELTS actually rounds.
Education Calculators — FAQs
Do these calculators match my school's grading system?
They use the most widely-adopted scales — the US 4.0 GPA system, official College Board and IELTS scoring. But institutions customize cutoffs (some award 4.0 from 90%, others from 94%), so treat your school's published scale as the final authority and ours as the common default.
Can I use the GPA calculator for both high school and college?
Yes. The credit-weighted formula is the same; only the credit values differ. Enter each course's grade and credit hours and the calculator handles the weighting — a 4-credit course moves your GPA four times as much as a 1-credit one.
How is the IELTS overall band calculated?
It's the arithmetic mean of your four section bands (Listening, Reading, Writing, Speaking), rounded to the nearest half band — with .25 rounding up to .5 and .75 rounding up to the next whole band, per the official IELTS scoring rules.