Education

Book Writing Timeline Calculator

Calculate how long it will take to write a book from daily word count goal and target length. Includes realistic buffer for revision and rest days.

Grade Curve Calculator

Apply a curve to a class of test scores: flat boost, square-root, or top-score-to-100. Compares raw scores and curved scores side by side.

Forgetting Curve Study Planner

Use the Ebbinghaus Forgetting Curve to schedule review sessions. Enter days since first studying to see current retention and the best times to review.

Semester Course Load Planner

Calculate weekly study hours needed from credit hours, course difficulty, and semester length. Build a realistic weekly study schedule for any semester.

Geological Time Scale Calculator

Look up any geological era, period, or epoch from millions of years ago. Find out what was happening on Earth at any point in its 4.5-billion-year history.

Mayan Numeral Converter

Convert between decimal numbers and the ancient Mayan vigesimal (base-20) numeral system. See the dot-and-bar representation used by the Maya civilization.

Syllable Counter

Count syllables in any word or sentence instantly. Useful for writing haiku, checking poetic meter, analyzing reading level, and song lyrics phrasing.

Word and Letter Frequency Calculator

Analyze the frequency of every word and letter in your text. Useful for writing analysis, cryptography, linguistics, and SEO keyword density.

Book Reading Time Calculator

Calculate reading time from page count, words per page, and reading speed in WPM. Returns total time for slow (150), average (250), and fast (400 WPM) readers.

Degree Completion Timeline Calculator

Calculate how long it will take to finish your college degree based on credits earned, credits remaining, and your course load each semester.

Assignment Deadline Countdown Calculator

Calculate days, hours, and work sessions remaining until an assignment deadline — and whether you have enough time to complete it.

Credit Hours to Units Converter

Convert between credit hours, semester units, quarter units, and contact hours — plus calculate full-time vs part-time student status.

Exam Pass Probability Calculator

Estimate your probability of passing an exam based on current average score, remaining assessments, and pass mark — helps you know what you need.

Citation Count Estimator

Estimate citation counts and academic impact scores. Calculate h-index potential, citations per year, and research impact benchmarks.

Essay Word Count Planner

Plan your essay structure by word count. Allocate words to introduction, body paragraphs, and conclusion based on total length and number of arguments.

Financial Aid Estimate Calculator

Estimate your expected financial aid eligibility based on household income, assets, and family size. Useful for US college planning.

Flashcard Spaced Repetition Calculator

Calculate your optimal flashcard review schedule using spaced repetition. Get review intervals for new, learning, and mature cards based on the SM-2 algorithm.

Reading Assignment Time Planner

Calculate how long it will take to complete a reading assignment based on your reading speed, text difficulty, and available time per session.

Single Grade GPA Impact Calculator

Calculate how a single grade changes your cumulative GPA from current GPA, credits earned, and new course hours. Returns new GPA for each letter grade A-F.

Weighted Grade Calculator

Calculate your weighted grade average across up to 10 assignments or exams. Set a custom weight for each entry and see your final course grade instantly.

Study Session Planner

Plan effective study sessions using the Pomodoro technique. Enter total available time and subject count to get a balanced, optimized study block schedule.

Essay Length Calculator

Estimate essay page count from word count, font size, and line spacing. Covers Times New Roman, Arial, and Calibri in 11pt and 12pt at each spacing.

Flashcard Study Plan Calculator

Calculate how many flashcards to study daily using spaced repetition. Plan your study schedule for exams and language learning.

GPA Needed to Graduate Calculator

Calculate GPA needed in remaining credits to hit a target cumulative GPA. Returns required semester average for graduation honors or probation recovery.

Scholarship Tax Calculator

Determine if your scholarship is taxable under IRS rules. Calculate the taxable portion from award amount minus tuition, fees, and required course materials.

Study Hours Calculator

Calculate study hours needed before an exam from chapters, difficulty, and days until the test. Returns a daily study schedule with hours per session.

Word Count Calculator

Count words, characters, sentences, and paragraphs in any text. Estimates reading time at 200 wpm and speaking time at 130 wpm for essays and presentations.

Student Loan Payoff Calculator

Calculate student loan payoff timeline and total interest from balance, interest rate, and term. Compare standard and accelerated payment strategies.

529 College Savings Plan Calculator

Project 529 plan balance with compound growth. Enter monthly contributions and return rate to compare savings against 4-year tuition and see your funding gap.

AP Credit Savings Calculator

Calculate tuition savings from AP exam credit. Passing a single AP exam at score 3-5 can earn 3-6 college credits and save $1,500-$3,000 at most universities.

School Days Counter Calculator

Count school days between two dates after removing weekends and holidays for the US, UK, Australia, and Canada. Returns days remaining and weeks to finals.

ACT to SAT Score Converter

Convert ACT scores to SAT and SAT to ACT using College Board concordance tables. Returns equivalents for composite, math, and reading with percentile rankings.

Book Reading Time Calculator

Estimate time to finish a book from page count, words per page, and reading speed. Returns total hours with a daily schedule to finish by your target date.

CGPA to Percentage Converter

Convert CGPA to percentage and percentage to CGPA using the Indian grading system (CGPA x 9.5). Works for CBSE, university systems.

Class Average Calculator

Calculate class average, median, standard deviation, and grade distribution from up to 40 scores. Returns pass rate at 60% and 70% thresholds for teachers.

Class Rank Percentile Calculator

Convert class rank to a percentile from rank and class size. See where you stand in your graduating class for college applications and scholarships.

College Cost Projector

Project 4-year college cost from current tuition, years to enrollment, and annual tuition inflation. Returns projected total and monthly savings needed.

Exam Score Needed Calculator

Calculate the minimum final exam score needed to reach your target grade from current grade and exam weight. Returns the required score and achievability.

Grade Calculator

Calculate your weighted average grade. Enter scores and their weights to get your overall grade with letter grade conversion.

Homework Time Estimator

Estimate total study time from number of assignments, difficulty level, and days available. Returns a daily homework schedule to pace work before deadlines.

IELTS Band Score Calculator

Calculate your overall IELTS band score from individual section scores. See how Listening, Reading, Writing, and Speaking combine.

International Grade Converter

Convert academic grades between US, UK, European (ECTS), and Indian grading systems. Useful for study abroad and international applications.

Language Learning Time Calculator

Estimate how long it will take to learn a new language based on difficulty tier, study hours per week, and proficiency target.

Reading Level Calculator

Paste any text to calculate its Flesch-Kincaid grade level and reading ease score. Find out what grade level your writing targets.

Reading Time Calculator

Estimate how long it takes to read a text. Paste your text or enter a word count to get estimated reading and speaking times.

SAT Score Converter

Convert between the old SAT scale (2400 max) and the new SAT scale (1600 max). Useful for comparing scores across different test years.

Scholarship GPA Requirement Calculator

Calculate the GPA needed in remaining credits to hit a scholarship or graduation requirement. Returns required average and minimum grade per course.

Scholarship Savings Calculator

Check if your college savings plan is on track. Enter college cost, years until enrollment, current savings, and contributions to see if you will have enough.

Semester GPA Calculator

Calculate your semester GPA from courses with letter grades and credit hours. Also computes cumulative GPA with prior credits.

Spaced Repetition Calculator

Plan your flashcard study schedule. Enter total cards and daily new cards to see how long it takes and what your review load looks like.

Student Budget Calculator

Plan a monthly student budget from income and expenses for rent, food, tuition, and transport. Returns surplus or shortfall and a 50/30/20 spending breakdown.

Student Loan Repayment Calculator

Calculate student loan payoff time, total interest paid, and total cost. Enter your loan amount, interest rate, and monthly payment.

Student Loan to Income Calculator

Calculate student loan debt-to-income from balance and starting salary. Returns monthly payment and affordability rating under the 10% income guideline.

Study Break Calculator

Plan study sessions with Pomodoro (25/5), 52-17, or 90-minute ultradian methods. Enter total study time to get a full session plan with break durations.

Study Time Planner

Plan your study schedule from exam date and total material to cover. Returns daily study hours and a week-by-week plan based on your available time slots.

Target GPA Calculator

Calculate the grade average needed in remaining credits to hit a target GPA. Enter current GPA, credits earned and remaining, and goal GPA.

Teacher Grading Calculator

Enter student scores and a grading scale to assign letter grades, see class distribution, and optionally apply a curve. Built for teachers.

TOEFL to IELTS Score Converter

Convert between TOEFL iBT and IELTS band scores. See approximate equivalencies for university and immigration applications.

Tuition Comparison Calculator

Compare the total 4-year cost of in-state, out-of-state, and private college tuition including room, board, and annual increases.

Typing Speed Test

Test typing speed in WPM and accuracy by typing a displayed passage. Returns gross WPM, net WPM after errors, and error rate — average typist reaches 40 WPM.

Word Count to Page Count Calculator

Convert word count to estimated page count based on font size, spacing, and formatting. Useful for essays, papers, and manuscripts.