Free online tools that make studying a little easier.
No sign-ups, no downloads, no ads before the answer. Calculate your GPA, plan your final exam score, or time a focused study session — all in your browser.
All tools, one place
Pick a calculator and get a clear answer in under a minute.
GPA Calculator
Calculate your semester or cumulative GPA by credit hours and letter grades.
Open toolFinal Grade Calculator
Find out the score you need on your final exam to reach your target grade.
Open toolPercentage Calculator
Work out percentages, ratios and percent change in seconds.
Open toolAverage Calculator
Add up a list of numbers and get the mean, count and sum instantly.
Open toolPomodoro Timer
Stay focused with timed study and break sessions that keep you on track.
Open toolGrade Converter
Convert between letter grades, percentages and GPA points across common scales.
Open toolTest Score Calculator
Turn the number of correct answers into a percentage and letter grade.
Open toolWeighted Grade Calculator
Combine assignments with different weights to see your overall course grade.
Open toolReading Time Calculator
Estimate how long it will take to read an article, a book or a paper.
Open toolStudy Time Calculator
See how many hours you should study each week based on your course load.
Open toolExam Countdown Calculator
See exactly how many weeks and days are left until your exam.
Open toolEssay Word Counter
Paste your essay and see word count, characters, sentences and reading time.
Open toolWeighted GPA Calculator (5.0)
Weighted GPA on the 5.0 scale with Honors +0.5 and AP/IB +1.0 weights.
Open toolCumulative GPA Calculator
Add this term’s courses to your previous GPA and credits to get your new cumulative GPA.
Open toolStudy Session Scheduler
Turn a deadline and a rough hour estimate into a day-by-day study plan.
Open toolGrade Needed Calculator
See exactly what you need on the final exam to hit your target grade.
Open toolBMI Calculator
Check your Body Mass Index instantly with the metric or imperial system.
Open toolLoan Calculator
Work out your monthly payment, total interest and payoff timeline in seconds.
Open toolStudy guides worth reading
Short, practical guides that explain the how and why behind the numbers.
How to Calculate Your GPA
A simple step-by-step method with a worked example you can follow along with.
Read guide ReferenceGrading Scales by Country
How the US, UK, Australia, China and India turn marks into grades.
Read guide ProductivityThe Pomodoro Technique
Why 25-minute sprints work and how to set up your first pomodoro session.
Read guide Productivity9 Study Tips That Work
Practical, evidence-friendly habits for focus, memory and less cramming.
Read guide CalculatorsHow to Improve Your GPA
Eight practical steps you can start this week — no gimmicks.
Read guide ReferenceGPA to Percentage
How the 4.0 scale maps to percentages, and why the conversion is rough.
Read guide ProductivityMake a Study Schedule That Sticks
A realistic weekly template that survives a busy semester.
Read guide Productivity10-Day Exam Prep Plan
A simple day-by-day plan to prepare without burning out.
Read guide ReferenceLetter Grade to Percentage
How letter grades map to percentage ranges, and what to watch out for.
Read guide Study SkillsHow to Study for a Math Exam
A 7-step plan that actually works for math: practice, timing and fixing weak types.
Read guide ReferenceHow to Calculate Weighted GPA
How AP, IB and Honors courses add weight, and how the 5.0 scale works.
Read guide ReferenceHow to Calculate GPA from Percentages
Turn your percentage grades into a GPA step by step, with the common cutoff scale.
Read guide Study SkillsHow to Get a 4.0 GPA
A realistic, semester-long plan that targets every point available — no shortcuts needed.
Read guide Study SkillsHow to Create Flashcards
A step-by-step method for making flashcards that actually build memory — and the mistakes that waste your time.
Read guide ResourceBest Study Apps 2026
A no-fluff, category-by-category guide to the study apps worth your time — and a free starter stack.
Read guide CalculatorsGPA Calculator FAQ
10 common GPA questions answered fast — from what a good GPA is to how to raise yours.
Read guide ResourceFree Student Tools
Every free calculator and guide on StudyTools in one place — a one-stop resource hub students can bookmark.
Read guide GearBest Scientific Calculators for Students
Which calculator you actually need for your courses, from budget scientifics to the TI-84.
Read guide GearBest Notebooks, Paper & Pens for College Students
Notebooks, flash cards, pens and the small stationery that survives a full semester.
Read guide GearBest Study Planners & Desk Organizers
Academic planners, whiteboards and desk organizers that keep deadlines in one place.
Read guide GearThe Student Desk Setup That Actually Helps You Focus
Headphones, light, stands and a physical timer — the setup that helps you focus.
Read guide GearBest Backpacks & School Supplies
Backpacks that hold up under a laptop load, plus the geometry kit for exam season.
Read guide