University GPA Calculator (Turkey)
Enter your courses’ letter grades and credits to get your term or cumulative grade point average with the coefficients in your university’s regulation, add earlier terms, and convert the average to the 100-point scale with YÖK’s 4-to-100 table.
- Credits averaged23
- Weighted points (Σ credit × coefficient)71.00
- 100-point equivalent (YÖK table)78.76
YÖK 4-to-100 table: YÖK Personel Dairesi Başkanlığı — “4’lük Sistemdeki Notların 100’lük Sistemdeki Karşılıkları” tablosu (PDF, 2008; mevzuat sayfası personel.yok.gov.tr/tr/page/283)
University regulations (letter grades): Üniversiteler (her biri kendi yönetmeliği; mevzuat.gov.tr güncel metinleri): Ankara (23832), Boğaziçi (22564), Gazi (42663), Hacettepe (42555), İstanbul (42625), İTÜ (22644), Marmara (21065), ODTÜ (46277)
Courses
How it is calculated
Turkey has no single GPA regulation for every university: each university sets its letter grades, coefficients, score bands, which grades count and the honour-list rules in its own undergraduate regulation. The same letter can therefore be worth different amounts at two universities (İTÜ has a BA+ of 3.75; Ankara University uses A, B1, B2…). Each scale in this calculator is taken, article by article, from the current text of that university’s regulation as published in the Official Gazette. The 4-to-100 conversion uses the equivalence table published by YÖK (the Council of Higher Education; PDF metadata 16.10.2008, no decision date or number published): 4.00 = 100.00, 3.00 = 76.66, 2.00 = 53.33, 1.00 = 30.00. For research and teaching assistant posts, the undergraduate grade’s 100-point value follows the equivalence set by YÖK decision (Regulation art. 6/3); YÖK’s Personnel Department publishes this table as “4’lük Sistemin 100’lük Sistemde Eşdeğerliliği”. Outside that scope universities may use their own conversion table; graduate, public-sector or foreign applications follow their own call’s rule.
GPA = Σ (credit × letter coefficient) ÷ Σ creditsCredit: the course’s credit (ECTS if your university averages by ECTS, its local credit otherwise) · Letter coefficient: the grade’s value out of 4.00 in the regulation. For the cumulative average, earlier terms are added as “average × credits”.- Pick your university: the letter coefficients come from its undergraduate regulation. If it is not listed, type the coefficient instead of the letter (e.g. 3.5 4).
- Enter each course’s grade and credit, separated by semicolons: AA 6; BA 5; CB 3.
- Each credit is multiplied by the coefficient and the products are added; the sum is divided by the credits that count.
- Grades the regulation leaves out of the average (exempt, pass/fail) are skipped; those it counts (e.g. failed for absence) count as 0.
- With your earlier cumulative GPA and its credits, the cumulative GPA is (earlier GPA × earlier credits + this term’s points) ÷ all credits.
- The result is shown with its equivalent in YÖK’s 4-point to 100-point table.
Example
AA 6; BA 5; BB 4; CB 3; CC 5 (METU scale): 6 × 4 + 5 × 3.5 + 4 × 3 + 3 × 2.5 + 5 × 2 = 24 + 17.5 + 12 + 7.5 + 10 = 71; 71 ÷ 23 credits = 3.087 → 3.09. In YÖK’s table 3.09 is 78.76. Added to 60 earlier credits at 2.80: (2.80 × 60 + 71) ÷ 83 = 239 ÷ 83 = 2.8795 → 2.88.
Frequently asked questions
Are AGNO, GANO and GPA the same thing?
All are credit-weighted averages; the name depends on the regulation. METU says “genel not ortalaması”, İTÜ “ağırlıklı genel not ortalaması” and Istanbul University AGNO. A term average covers that term’s courses; the cumulative one covers every course taken so far.
What is my 4-point GPA on the 100-point scale?
Type your GPA in the “4 → 100 scale” tab. YÖK’s table gives an equivalent for every 0.01 step from 4.00 down to 1.00, e.g. 3.50 = 88.33, 2.50 = 65.00. It has no rows under 1.00. Some job calls or universities may use their own conversion, so check the rule of the call you apply to.
How do I convert a 100-point grade to the 4-point scale?
YÖK’s table converts 4-point grades to 100. There is no official table the other way; the “100 → 4 scale” tab reads it backwards, the tool’s own method, and gives the highest 4-point grade whose equivalent does not exceed yours. A single course’s letter for a 100-point score depends on your university’s bands, not on this table.
How does a failed course affect the average?
Failing grades with a coefficient of 0 count: the credit is added below the line and nothing above it, so the average drops. At METU, for instance, NA counts as FF. Exempt, pass/fail or withdrawal marks usually do not count; the calculator follows each regulation.
If I retake a course, does the old grade leave the average?
In most regulations the latest grade of a retaken course counts (e.g. METU art. 28/4, İTÜ art. 22/1, Hacettepe art. 25/2: “based on the last grades”). There are exceptions: at Istanbul University (art. 23/1) a student who gets FF on the retake keeps the earlier DD or DC. If you start from your earlier cumulative GPA, remove the retaken course’s old credit and points (credit × old coefficient) from the earlier totals, or it counts twice.
What average do the honour lists need?
It depends on the university, and there are conditions besides the average. At METU and İTÜ a term average of 3.00–3.49 is honour and 3.50–4.00 high honour; METU also asks for at least three credit courses and no FF, FD, NA or U that term, İTÜ for at least 18 credits and no FF/VF. The result shows the threshold of the university you pick.
My university is not listed. What can I do?
Type the coefficient from your regulation instead of the letter: “4 6” for “AA 6”, “2.5 3” for “CB 3”. The calculation is the same. The coefficients are in your university’s undergraduate regulation (on mevzuat.gov.tr or the registrar’s page).
Source
- YÖK: table “4’lük Sistemdeki Notların 100’lük Sistemdeki Karşılıkları” (PDF metadata 16.10.2008, no decision date or number published; 301 rows, 4.00 to 1.00), listed as “4’lük Sistemin 100’lük Sistemde Eşdeğerliliği” on the Personnel Department’s legislation page
- Regulation on central and entrance exams for teaching staff posts other than faculty (Official Gazette 9/11/2018-30590), art. 6/3: for the undergraduate grade in these appointments, the 100-point equivalence of the 4- and 5-point systems is set by YÖK decision
- Ankara University undergraduate regulation (OG 8/8/2017-30148, last amended OG 28/3/2026-33207), art. 35/7 (scores, letters, coefficients), art. 36 (ECTS-weighted average, rounding), arts. 42–43 (high achievement)
- Boğaziçi University undergraduate regulation (OG 11/6/2016-29739, last amended OG 13/8/2026-33339), art. 23/1 (grades), art. 28 (average, rounding, P/NC/W), art. 34/1 (honour lists)
- Gazi University undergraduate regulation (OG 21/10/2025-33054), art. 16/5 (scores and coefficients under absolute grading), art. 17 (average; D and G count as FF)
- Hacettepe University undergraduate regulation (OG 30/7/2025-32971, amended OG 14/9/2025-33017), art. 24/1 (scores, grades, coefficients), art. 25 (average), art. 32/2 (honours)
- Istanbul University undergraduate regulation (OG 28/9/2025-33031), arts. 21/1 and 21/7 (relative/absolute grading, coefficients, absolute bands), art. 22/1 (AGNO, ECTS, rounding; G and M), art. 23/1 (retakes), art. 33/1 (honours), provisional art. 1 (credit/ECTS)
- Istanbul Technical University undergraduate regulation (OG 11/7/2016-29767, last amended OG 4/12/2023-32389), art. 4/1-a (grades outside the average), art. 20 (curve grading, BA+ … DD+, VF), art. 22/1 (retakes), art. 23/8 (honours), art. 30 (two decimals)
- Marmara University undergraduate regulation (OG 20/8/2015-29451, last amended OG 27/10/2023-32352), art. 23/7-8 (letters, coefficients, FG, DZ, S, MZ), art. 25 (averages, rounding, honours)
- Middle East Technical University undergraduate regulation (OG 21/6/2026-33287, from 2026-2027), art. 26/5 (letters, coefficients, scores; NA, S, U, EX, W), art. 28/4 (retakes), art. 29 (average, rounding), art. 30/1 (honours)