Smart tools for smarter studying
Fast, accurate, beautifully simple calculators for students around the world — from GPA conversion to exam countdowns. Every tool works right in your browser.
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International GPA Converter
Convert percentage, 10-point CGPA, 7-point, 4.3 and 5.0 scales to the 4.0 GPA scale — built for international students.
Try it nowNewFinal Grade Calculator
What do you need on the final to hit your target grade? Simple and weighted-assignment modes.
Try it nowNewChristmas Countdown
How many days until Christmas? Live countdown that rolls over to next year automatically.
Try it nowDays Until Calculator
Count down to any date — exams, trips, deadlines, holidays. Shareable links included.
Try it nowNewEasy Grader
Grade a test in seconds: total questions + wrong answers = percentage score and letter grade. Made for teachers.
Try it nowNewGCSE Grade Calculator
Estimate your GCSE grade on the 9–1 scale from marks or percentage. Includes typical grade boundaries.
Try it nowNewSemester GPA Calculator
Add your courses, letter grades and credits to get your semester GPA instantly.
Try it nowCumulative GPA Calculator
Combine your previous GPA and credits with this semester to see your overall GPA.
Try it nowWeighted GPA Calculator
Honors and AP/IB weighting on the 5.0 scale — weighted and unweighted GPA together.
Try it nowLetter Grade to GPA
Convert any letter grade to grade points on the 4.0 scale, with the full reference table.
Try it nowGuides
Understand the math behind the tools — GPA conversion, final exam formulas, and holiday countdowns.
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