Tamil Nadu SSLC Marks to Percentage Calculator 2025
May 16, 2025, 3:35 p.m.
Convert TN SSLC Marks into Percentage Easily and Accurately
TN SSLC results have been declared, and want to know your exact percentage? We have simplified the process for students and parents. Don’t worry, we’ve got you covered! In this blog, you’ll find a free online tool to convert your marks to percentages- accurate, fast, and stress-free.
How to Calculate TN SSLC Percentage Manually
Want to know how the calculator works behind the scenes? Here’s the simple formula to calculate your 10th mark percentage:
Formula:
Percentage = (Total Marks Obtained ÷ Maximum Marks) × 100
Example:
If you scored 472 out of 500,
Percentage = (472 ÷ 500) × 100 =94.4%
Step-by-Step Sample Calculation (5 Subjects out of 100 Each)
Subject
Marks
Tamil
70
English
90
Maths
72
Science
82
Social Science
80
Total
394
Maximum Marks =100 x 5 = 500
SSLC Percentage =(394 ÷ 500) × 100 = 78.8%
Key Points to Remember
Passing Marks: 35% in each subject.
First Class: 90% and above.
Some optional or second language subjects may not be included. Always check with your school.
SSLC Grading System Overview
Marks Range
Grade
91 - 100
A1
81 - 90
A2
71 - 80
B1
61 - 70
B2
51 - 60
C1
41 - 50
C2
35 - 40
D
Below 35
E (Fail)
Note: Only marks are considered for percentage calculation, not grades.
If you want to know more about TN SSLC grading system, Check out the blog given below
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Frequently Asked Questions
No, it’s not an official tool. It's just for estimation. Always verify with the TN board or your school for exact results.
Usually, 5 main subjects are considered. Optional subjects may be excluded. Confirm with your school.
You need 35% in each subject to pass.
No, this calculator works only with marks. If your report card uses grades, check your school’s conversion chart first.
This tool is specifically designed for Tamil Nadu SSLC students, but students from other states can use the same formula for general reference.
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