Marks Percentage Calculator

Marks percentage = (marks obtained / total maximum marks) x 100. For a single total, if you scored 450 out of 500, that is 450 / 500 x 100 = 90%. When you have several subjects, add up the marks you obtained across all of them, add up the maximum marks, and divide: for example 425 out of 500 across five subjects is 85%. This tool does both - enter one total, or enter each subject with its own maximum and it aggregates them for you.

No. As per CBSE's official policy on the calculation of percentage for Class X and XII (and sub-section 40.1(iii) of the Examination Bye-Laws), the Board does not calculate or declare an overall percentage of marks, and no overall division, distinction, or aggregate is awarded. Any percentage you see on an admission form or a job application is computed by the admitting institution or the employer using their own rule, not by CBSE. So treat any percentage from this or any calculator as an estimate for your own planning, and use your official mark sheet as the authoritative record.

It is a convention used by many institutions, not a CBSE-declared percentage. When a Class 10 student takes six subjects, the lowest-scoring subject is dropped and the percentage is worked out on the best five. A skill or optional subject (for example Information Technology or Artificial Intelligence) can replace a lower-scoring core subject - but in most cases Language 1 and Mathematics cannot be substituted. Because the exact best-five composition is decided by the admitting institution or employer, this tool does not force a single rule: you choose which subjects to count, or let it keep your best N.

Pick your best five subjects (typically the five with the highest marks when each is out of 100), add those five marks, divide by their combined maximum (usually 500), and multiply by 100. For instance, best-five marks of 420 out of 500 is 84%. In this calculator, add all your subjects and choose 'best N' or 'drop lowest', and it keeps the highest-scoring subjects by their own percentage and shows which ones it counted. Confirm the subjects your specific college or board allows, since Language 1 and Mathematics are usually not replaceable.

Use the aggregate, not an average of percentages: add the marks you obtained across all subjects, add all the maximum marks, then divide and multiply by 100. For example 70/80 in one subject and 55/70 in another is (70 + 55) / (80 + 70) x 100 = 125 / 150 = 83.33%. The subject-wise mode handles this automatically, and when you pick 'best N' it ranks each subject by its own percentage (marks out of that subject's maximum) so a 45/50 beats an 80/100.

The best-of-five idea is used for Class 12 aggregate too, but again it is the admitting institution's or university's rule, not a CBSE declaration. Many undergraduate admissions compute a course-specific aggregate instead - for example one language plus three or four subjects relevant to the course (a 'best of four' is common in some Delhi University-style admissions), and some programmes require specific subjects such as Physics, Chemistry and Maths or Biology to be included regardless of marks. Always check the exact subject combination the college counts before assuming a plain best of five.

Only when it helps. Under the best-of-five convention, your sixth (additional or skill) subject is counted only if it scores higher than one of your main subjects, in which case it replaces the lowest-scoring main subject - except that Language 1 and Mathematics usually cannot be replaced. If all five main subjects score higher than the additional one, the additional subject is dropped from the aggregate. Because the institution decides the final composition, treat the figure here as an estimate and confirm with the college.

Percentage and CGPA are converted with a board- or university-specific formula, not from the marks percentage directly - CBSE's older indicative formula, for instance, was CGPA x 9.5 = percentage. Use the CGPA to Percentage and SGPA Calculator for that conversion; this tool focuses on working out the percentage itself from your marks.

No. The calculator runs entirely in your browser. The marks and maximums you type are never sent to a server, stored, or tracked, and refreshing the page clears everything.