Free Education Calculators
for Every Student
Calculate your GPA, plan your study schedule, and track academic goals with accurate, no-sign-up tools built for US college and high school students.
All Education Calculators
Pick any tool below — everything is free, instant, and privacy-friendly (all calculations happen in your browser).
GPA & CGPA Calculator
The most complete free GPA calculator for US college students — and the only one that also supports Canada (4.33), UK, India (10.0), and Australia grading systems. Enter your courses once; your semester GPA and cumulative CGPA update instantly.
- 4.0 US scale with plus/minus grades
- 9+ international grading systems
- Target GPA prediction tool
- CSV/JSON export & print PDF
- Auto-saves to browser — no account needed
AI Daily Study Planner
Generate a personalized daily study schedule in seconds. Enter your subjects, available hours, and exam dates — the planner handles the rest with a built-in session timer and progress tracking.
- Personalized daily schedule
- Built-in countdown timer
- Study session analytics
Advanced Scientific Calculator
Full-precision scientific calculator covering algebra, trigonometry, logarithms, statistics, and engineering functions — ideal for college STEM coursework.
- Trig, log & exponential functions
- Matrix & vector operations
- Expression history
Pomodoro Timer
Boost study focus with timed work/break intervals. Customize session length, track completed Pomodoros, and see your daily productivity streak.
- Customizable work/break intervals
- Daily streak tracking
- Sound notifications
IELTS Band Score Calculator
Calculate your Overall Band Score using official IELTS rounding rules. Includes raw-score converters for Listening & Reading, a target band planner, score simulator, and CEFR mapping for both Academic and General Training.
- Official IELTS rounding (e.g. 6.25 → 6.5)
- Raw-to-band converter (Listening & Reading)
- Target band planner with gap analysis
- Score simulator & compare tool
- CEFR level mapping included
Weighted Grade Calculator
Calculate your final course grade from weighted categories — homework, quizzes, midterms, and finals. See exactly what score you need on the final exam.
- Weighted category support
- “What do I need?” mode
- Printable grade report
Advanced Graphing Calculator
Plot interactive 2D and 3D graphs, solve equations, visualize functions, and perform advanced mathematical calculations. Perfect for students, teachers, engineers, and researchers.
- Interactive 2D & 3D graphing
- Equations, calculus & matrices
- Real-time function visualization
Cronbach’s Alpha Calculator
Measure the internal consistency reliability of your survey or test items. Paste your item-level data and get Cronbach’s alpha along with item-total statistics — built for students and researchers running scale reliability checks.
- Instant alpha coefficient calculation
- Item-total & “alpha if item deleted” stats
- Works with pasted or manually entered data
TI-84 Calculator Simulator
An independent TI-84-style calculator simulator with a full button-by-button guide — covering basic math, Y=/WINDOW/GRAPH graphing, statistics, lists, and matrices, all in your browser.
- Y=, WINDOW, GRAPH & TRACE support
- STAT, LIST & MATRIX menus
- Complete function guide included
Casio fx-991EX Style Calculator
A browser-based Casio fx-991EX style scientific calculator with six real calculation modes (COMP, CMPLX, BASE, STAT, EQN, MAT/VCT/TABLE) plus a 20-tool solver panel for derivatives, integrals, Newton’s method, and more.
- Six calculation modes, real math parser
- 20-tool step-by-step solver panel
- Memory bank, history & six skins
HP Prime G2 Calculator
A browser-based HP Prime G2 style graphing calculator for algebra, calculus, and symbolic math — plot functions, solve equations, and explore advanced mathematics online without any download.
- Graphing & symbolic (CAS-style) math
- Equation solving & calculus tools
- Free, runs in your browser
BA II Plus Calculator
Free online BA II Plus style financial calculator for finance, accounting, and CFA-type coursework — time value of money, cash flows, NPV, IRR, and more, right in your browser.
- TVM, NPV & IRR calculations
- Built for finance & accounting students
- No sign-up, works on any device
HP-15C Scientific Calculator
An online HP-15C style scientific calculator inspired by the classic RPN engineering model — built for students and engineers who want fast, stack-based scientific calculations.
- Classic RPN-style workflow
- Scientific & engineering functions
- Free, instant, browser-based
HP-12C Financial Calculator
A free online HP-12C style financial calculator for loans, interest, bonds, and investment analysis — the RPN finance workflow business and economics students know, available on any device.
- RPN-style financial functions
- Loans, interest & cash-flow analysis
- No download, no account
Built for Real Students
We built every calculator to solve actual problems students face — not just to show a number.
Accurate US & International Grading
Every scale is verified against official academic standards — no guesswork, no wrong conversions.
Your Data Stays Private
All calculations happen in your browser. We never store your grades on our servers.
Instant Results
Real-time updates as you type — no “calculate” button, no page reloads, no waiting.
Works Everywhere
Fully responsive on mobile, tablet, and desktop. Use it in class, in the library, anywhere.
Auto-Saves Your Progress
Browser-based autosave keeps your semester data ready when you return — no account needed.
Completely Free
No ads, no paywalls, no premium tiers. Every feature on every calculator is free, forever.
How US College GPA Works
GPA (Grade Point Average) is the weighted average of your course grades, where each course is weighted by its credit hours. Most US colleges use a 4.0 scale, with letter grades mapped to grade points as shown in the table.
Your semester GPA covers one term, while your cumulative GPA (CGPA) averages across every semester you have completed. Graduate school programs typically require a 3.0+ GPA, and competitive scholarships often look for 3.5+.
The formula is straightforward:
- Multiply each course’s grade points by its credit hours
- Add all those products together (quality points)
- Divide by total credit hours attempted
A 4-credit course carries four times the weight of a 1-credit elective — so earning an A in a core course matters much more than acing a 1-credit lab.
Try the GPA Calculator| Letter | Grade Points | Percentage | Standing |
|---|---|---|---|
| A+ / A | 4.0 | 93–100% | Excellent |
| A− | 3.7 | 90–92% | Excellent |
| B+ | 3.3 | 87–89% | Good |
| B | 3.0 | 83–86% | Good |
| B− | 2.7 | 80–82% | Good |
| C+ | 2.3 | 77–79% | Average |
| C | 2.0 | 73–76% | Average |
| D | 1.0 | 60–69% | Passing |
| F | 0.0 | Below 60% | Fail |
Frequently Asked Questions
Quick answers about our free education calculators.
How do I calculate my GPA for a US college?
What GPA do I need for graduate school or scholarships?
Can I use these calculators for high school GPA?
Do these calculators support international grading systems?
Is my grade data saved? Is it private?
Are these calculators really free?
Start Calculating Your GPA Now
Free, private, and accurate. No sign-up. Works on any device. Takes 60 seconds.