Student life is full of small but stressful sums: what's my CGPA, will I clear the attendance requirement, what do I need on the final to pass, how many hours should I study? CrispToolHub's free education calculators answer all of them in seconds, accurately and privately, with no sign-up and nothing uploaded — so you can stop worrying about the maths and get back to studying.

The CGPA calculator computes your cumulative grade point average from your subjects' grades and credits, and converts between CGPA and percentage using the formula your university uses — CBSE, VTU, Mumbai University, Anna University or a custom multiplier. For US grading, the GPA calculator handles both semester and cumulative GPA on the 4.0 scale with the standard letter-grade mapping.

When a course is graded by components, the grade calculator works out your weighted final grade, and its second mode tells you exactly what score you need on the final exam to reach the grade you want — one of the most-searched student questions. The attendance calculator covers the other big worry with three modes: your current attendance percentage, how many classes you can still afford to miss, and how many you must attend to reach the required minimum.

To plan ahead, the study hours planner estimates how long each subject needs based on difficulty and chapters, then builds a daily schedule against your exam date and warns you if you're short on time. And for everyday maths, the percentage calculator bundles six common operations into one clean interface. Pick a tool above to get started.

How to get started

Three quick steps — no account, nothing uploaded to a server.

Choose a tool from below

Browse the tools on this page and pick the one that fits what you need.

Use it instantly — no account needed

Open it and start right away; everything runs free in your browser.

Download or copy your results

Save, copy or share your output in a click — nothing is uploaded to a server.

FAQ

Frequently asked questions

What education calculators are included?

This hub brings together the calculations students need most: a CGPA calculator and converter, a US-scale GPA calculator, a weighted grade calculator (including a 'what do I need on my final' mode), an attendance percentage tracker, a study-hours planner for exam prep, and a six-mode percentage calculator. Every tool runs in your browser with no sign-up.

What's the difference between CGPA and GPA?

Both are grade point averages, but CGPA usually refers to a cumulative average on a 10-point scale common in Indian universities, while GPA typically means the 4.0-point scale used in the US. They use different grade-to-point mappings, so we provide separate tools — and the CGPA tool can convert to a percentage using your university's formula.

How do I convert CGPA to percentage?

Different universities use different formulas. The CGPA calculator lets you pick yours — for example CBSE's CGPA × 9.5, VTU's CGPA × 10 − 7.5, Mumbai University's CGPA × 7.25 + 11, or Anna University's (CGPA − 0.5) × 10 — or enter a custom multiplier, and it converts in both directions.

Are these tools free and accurate?

Yes, completely free with no account or limit. The calculations use the standard formulas each metric is defined by, so they match what your institution computes — though always check your specific university or school's rules, since grading scales and attendance thresholds vary.

Is my data private?

Yes. Everything is calculated locally in your browser — your grades, marks and attendance figures are never uploaded, stored or shared.

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