Student Toolbox

All 23 free study tools

Calculators, timers, writing helpers and quizzes. All free, all in your browser.

Tools by category

I need to
01

Math & Grades

GPA, final-exam targets, percentages and fractions.

GPA Calculator Semester GPA on the 4.0 scale. CGPA Calculator Combine semesters into a cumulative GPA. Percentage Calculator Marks to percent, percent of, percent change. Grade Calculator Weighted grade and the final score you need. Fraction Calculator Add, subtract, multiply, divide, with steps.
02

Study & Focus

Timers, planners and counters for getting the work done.

Pomodoro Timer 25-minute focus blocks with breaks. Study Planner A daily plan you can tick off. Exam Countdown Days, hours and minutes to each exam. Reading Time Calculator Reading and speaking time for any text. Word Counter Words, characters, sentences, keywords.
03

Writing & Research

Citations, readability, text case and flashcards.

Citation Generator APA 7 and MLA 9 for sites, books, journals. Text Case Converter Title, sentence, UPPER, camelCase and more. Readability Checker Flesch score and grade level. Flashcard Maker Make a deck, flip through it.
04

Quizzes & Trivia

Ten-question quizzes on every subject and a random question machine.

General Knowledge Quiz Ten questions across six subjects. Science Quiz Space, chemistry and the human body. Random Question Generator One trivia question per click. World Geography Quiz Capitals and countries worldwide. History Quiz Presidents, empires, wars and inventions. Math Quiz Mental math, geometry and number facts. Technology Quiz Computers, the internet and inventors.
05

Science & Units

A scientific calculator and a unit converter.

Scientific Calculator Trig, logs, powers, roots, factorials. Unit Converter Length, weight, temperature, speed, data.