Weighted GPA by subject
Enter each grade and credit value; the calculator applies the correct weighted average instantly.
Free online learning tool
GPA & GPAX calculator
Calculate your GPA by subject or cumulative GPAX quickly, clearly, and for free. Built by Podsawee Wanatham for students using the Thai grading system.
Free to useNo installationSupports GPA and GPAX
Calculate your grade
Free to use · LCS
Why use this calculator
Everything you need to calculate grades
Enter subjects and credits for GPA, or prior results for cumulative GPAX. Your data stays in this browser.
Cumulative GPAX
Combine an existing GPA and credits with the current term to estimate your new cumulative result.
Works on every device
Use it on phone, tablet, or computer without downloading an application.
Three simple steps
How to calculate GPA online
Calculate your GPA by subject or cumulative GPAX quickly, clearly, and for free. Built by Podsawee Wanatham for students using the Thai grading system.
1Choose GPA or GPAX
Use GPA for subjects in one term, or GPAX to combine results across terms.
2Enter grades and credits
Add the values shown on your real transcript. You can add or remove subject rows as needed.
3Review the result
The calculator shows the weighted average and total credits so you can plan your studies. Start calculating
Frequently asked questions
What to know before calculating
Is LCS Grade Calculator free?
Yes. It is free in your web browser with no download or installation.
What is the difference between GPA and GPAX?
GPA is an average for a defined study period. GPAX is a cumulative average across multiple terms.
Can I use it on a phone?
Yes. The page is designed for phones, tablets, and computers.
LCS · LEARNING CENTER STATION
Start calculating
Visit LCS Learning Center Station