A Kerala SSLC marksheet carries no percentage. Pareeksha Bhavan publishes grades (A+ down to E across 10 papers) and every percentage quoted from one is a conversion done afterwards. The standard conversion is (Total Grade Points ÷ 90) × 100, and the SSLC percentage calculator above runs it as soon as you have picked a grade for each paper. Karnataka and Tamil Nadu marksheets do print marks, so those go in the marks tab and divide by 625 or 500 instead.
How do you use the SSLC percentage calculator?
Pick your entry mode, type in your grades or marks, and the percentage appears with the formula beside it. A Kerala grade card goes in the grades tab; a Karnataka or Tamil Nadu marksheet goes in the marks tab. Each state uses a different total, so the mode you pick matters.
- Choose your entry mode. A Kerala grade card goes inEnter grades; a Karnataka or Tamil Nadu marksheet goes inEnter marks.
- Check the subject list. All 10 SSLC papers are pre-filled in marksheet order, so there is nothing to type.
- Pick the grade you were awarded in each paper from the dropdown. Every option shows the grade points it carries.
- Read the result block. It gives your percentage, the Total Grade Points behind it, and your overall grade.
If any paper falls below D+, the calculator says so beside the percentage. Kerala treats one paper under the line as a fail whatever the other nine did, so the warning belongs next to the number rather than under it.
The Kerala SSLC grading system
Kerala grades SSLC on a nine-point scale. A+ is the top band and carries 9 grade points; each band below it drops one point and covers a ten-mark span of the underlying marks.
| Grade | Marks range | Grade points |
|---|---|---|
| A+ | 90 to 100% | 9 |
| A | 80 to 89% | 8 |
| B+ | 70 to 79% | 7 |
| B | 60 to 69% | 6 |
| C+ | 50 to 59% | 5 |
| C | 40 to 49% | 4 |
| D+ | 30 to 39% | 3 |
| D | 20 to 29% | 2 |
| E | Below 20% | 1 |
E is worth 1 grade point, not 0. Several calculators score it as zero, which drags the percentage down for anyone holding an E and makes the bottom of the scale look worse than it is. The scale runs 9 down to 1 across the nine grades, as set out inShiksha's Kerala SSLC exam pattern andNDTV's explainer on the SSLC grading system.
SSLC is examined on 10 papers. At 9 points each, that puts the ceiling at 90 Total Grade Points, the number every percentage on this page is measured against.
How do you calculate SSLC percentage from grades?
Add up the grade points from all 10 papers, divide that total by 90, then multiply by 100. Kerala reports SSLC as grades rather than marks, so your Total Grade Points are what the percentage is built from, and a straight A+ card reaches exactly 100%.
Percentage = (Total Grade Points ÷ 90) × 100
Take a card of 5 A+, 3 A, 2 B+:
- 5 papers at A+, worth 9 points each = 45
- 3 papers at A, worth 8 points each = 24
- 2 papers at B+, worth 7 points each = 14
- Total Grade Points: 45 + 24 + 14 = 83
Percentage = (83 ÷ 90) × 100 =92.22%, an overall A+.
Why the × 1.11 shortcut is wrong
A shortcut doing the rounds says to multiply your TGP by 1.11. It is a truncated 100 ÷ 90, which is 1.1111 recurring, so it undershoots everywhere on the scale and the gap widens as the TGP rises. On a perfect card it returns 99.9% instead of 100%. Anywhere near a cut-off written to one decimal place, that is enough to matter, so divide by 90 instead.
SSLC grade combinations and their percentages
The cards students ask about most, each run through the same formula as the calculator:
| Grade card | Total Grade Points | Percentage |
|---|---|---|
| 10 A+ (full A+) | 90 | 100.00% |
| 9 A+, 1 A | 89 | 98.89% |
| 8 A+, 2 A | 88 | 97.78% |
| 7 A+, 3 A | 87 | 96.67% |
| 5 A+, 5 A | 85 | 94.44% |
| 10 A | 80 | 88.89% |
| 10 B+ | 70 | 77.78% |
| 10 B | 60 | 66.67% |
| 10 C+ | 50 | 55.56% |
| 10 C | 40 | 44.44% |
| 10 D+ (bare pass) | 30 | 33.33% |
| 10 E | 10 | 11.11% |
A full A+ card landing on exactly 100% is the clearest sign that this is a ceiling rather than a measured score. An A+ covers 90 to 100 marks, so 90 Total Grade Points says every paper reached the top band, not that every paper scored full marks. Which is where the second method comes in.
This is a grade-point equivalent, not an official mark. Every grade covers a ten-mark band, so this percentage is the accepted equivalence rather than the marks you actually scored. Two students holding the same Kerala SSLC card can be several marks apart. The figures follow the nine-point A+ to E scale, 9 points at the top and one at the bottom. When a form needs the real number, ask Kerala Pareeksha Bhavan for the official statement.
Which SSLC percentage method is correct, TGP or grade midpoints?
Use the Total Grade Points method, the one Kerala's own result statement is built on. Two conversions are in circulation, and at the top of the scale they disagree by five points. The Total Grade Points method divides your TGP by 90. The midpoint method scores each grade at the centre of its marks band (A+ as 95, A as 85, B+ as 75, and so on down), then averages those figures.
| Grade card | TGP ÷ 90 | Grade midpoint average |
|---|---|---|
| 10 A+ (full A+) | 100.00% | 95.00% |
| 9 A+, 1 A | 98.89% | 94.00% |
| 10 A | 88.89% | 85.00% |
| 10 B+ | 77.78% | 75.00% |
| 10 D+ (bare pass) | 33.33% | 35.00% |
They answer different questions. TGP ÷ 90 gives the maximum your grade card supports: the grade points are what the board actually awarded, so the figure is reproducible by anyone holding the certificate. The midpoint method estimates where your marks probably sat inside each band, which is closer to what people mean when they ask what you actually scored.
The two converge in the middle of the scale and pull apart at the ends, which is exactly where students care. At 10 B+ they sit 2.78 points apart; on a full A+ card the gap is 5 points. At the pass line the midpoint method is the higher of the two.
Use the TGP figure when a form asks you to convert a grade card, since it is the number your grade points support, and the one this calculator reports. Use the midpoint figure when the question is an informal estimate of your marks. Neither is official: Pareeksha Bhavan publishes no percentage, and an institution that needs an exact number will ask for the grade card itself or apply its own conversion.
How do you calculate Karnataka SSLC percentage from marks?
Karnataka issues marks, not grades, so there is no grade conversion to argue about. The SSLC total is 625 across 6 papers, and the percentage is(marks obtained ÷ 625) × 100.
- 580 out of 625 → (580 ÷ 625) × 100 = 92.80%
- 500 out of 625 → (500 ÷ 625) × 100 = 80.00%
Add every paper's raw marks first, then divide once. Averaging the individual subject percentages gives a different answer as soon as papers carry different maximums, which they do on a 625-mark card. On the pass mark, be careful with what you read online: Karnataka's per-subject minimum has been reported as revised down to 33%, so check the notification for your own exam year rather than trusting a figure quoted from an older one. The marks tab above handles this card, andthe marks to percentage calculatorcovers any other board total.
How do you calculate Tamil Nadu SSLC percentage from marks?
Tamil Nadu SSLC totals 500 marks across 5 papers, with 35% needed in each subject to pass. Percentage =(marks obtained ÷ 500) × 100, so 425 marks is (425 ÷ 500) × 100 =85.00%.
Practical and theory components are counted inside their subject total, so use the figures printed on the marksheet rather than theory marks alone. Enter them in the marks tab of the calculator above, or usethe marks to percentage calculatorif your school works to a different total.
What counts as a pass in Kerala SSLC?
D+, or 30%, is the minimum in every paper. No aggregate rule compensates for missing it: one subject below D+ means the card does not pass, however good the other 9 are. That is why the calculator flags a failing subject next to the percentage instead of folding it into the total.
SAY (Save A Year). Kerala holds a supplementary exam a few weeks after the results for students who fell short in a limited number of papers. Clearing SAY means starting Plus One with the same batch rather than repeating the year.
Pass rules, the SAY schedule and the official result statement all come fromKerala Pareeksha Bhavan, which is also where to go when a form needs something the grade card does not show.
Where your SSLC percentage is actually used
Not for Plus One admission in Kerala. The state's single-window process athscap.kerala.gov.in works on grades and grade points, and the weighted index it computes reads your grade card directly, so converting to a percentage first changes nothing about where you are allocated.
The percentage matters elsewhere. Scholarship forms ask for one, including the central ones on the National Scholarship Portal. So do admissions in other states, where an office that has never seen a Kerala grade card wants a number it can compare. So does any job or apprenticeship form with a "Class 10 %" box. Attach the grade card in each case and use the TGP figure. If the form wants a CGPA rather than a percentage,convert the percentage to CGPAwith the formula that form names.
After SSLC: Plus One, Plus Two and beyond
SSLC feeds into Plus One, then Plus Two, then a degree, and the grading changes underneath you at each step. Plus One and Plus Two use the same nine-point A+ to E scale, but DHSE awards the final grade on both years combined, so a first-year score on its own is a progress check rather than the figure that reaches the certificate. ThePlus One percentage calculatorconverts that year's grade card and shows what the second year still has to do. Degree courses drop grades altogether for credit-weighted averages, which is wherethe difference between CGPA, SGPA and GPAstarts to matter: a semester SGPA and an overall CGPA are not the same number, and forms ask for both.