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 Calculate an adaptive grade from scores, weights and difficulty levels across multiple assessments, with the full workin…
- Assignment Grade Calculator Calculate your assignment grade from weighted tasks and scores, with letter-grade mapping so you know exactly where your…
- Exam Score Predictor Work out how many marks you need in your final exam to reach your target grade, based on your current scores and each co…
- Final Grade Calculator Find the exact score you need on the final exam to hit your target course grade — from your current grade and the final'…
- GPA Calculator Calculate your GPA from course grades and credit hours on 4.0 or 5.0 scales, and see exactly how each course pulls your …
- IELTS Score Calculator Calculate your IELTS score instantly! Get accurate band estimates and understand your strengths. Try the IELTS Score Cal…
- Impact Factor Calculator Calculate a journal’s impact factor instantly! Get accurate IF results and understand its true influence. Try the Impact…
- Reading Speed Calculator Measure your reading speed in words per minute based on text type and reading time, and see how long books and articles …
- SAT Score Converter Convert your SAT score and see where it stands, so you can compare results across tests and make smarter study decisions…
- Study Planner Generator Create a day-by-day study plan from your tasks, difficulty levels and available hours, so every subject gets realistic t…
- Study Time Calculator Estimate the total time needed to study chapters based on your pace and study goals.
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.