Simple average
Arithmetic mean — every grade counts equally. Right for term and yearly averages.
(sum of grades) ÷ count
Bulgarian Grade Average Calculator
Enter your grades on the Bulgarian 2–6 scale to get the average to two decimals — with the qualitative band and optional credit weighting.
Grades use the 2–6 scale. Values outside the range are ignored.
Grade average
5.00Very good
4 grades
The Bulgarian 2–6 scale
The qualitative band of an average is determined by the ranges below.
| Grade | Qualitative grade | Average range |
|---|---|---|
| 6 | Excellent (Отличен) | 5.50 – 6.00 |
| 5 | Very good (Много добър) | 4.50 – 5.49 |
| 4 | Good (Добър) | 3.50 – 4.49 |
| 3 | Average (Среден) | 3.00 – 3.49 |
| 2 | Poor / Fail (Слаб) | 2.00 – 2.99 |
Named grades: 2 — Poor (Fail), 3 — Average, 4 — Good, 5 — Very good, 6 — Excellent.
Weighted average
Each grade is multiplied by its credits/hours. Right for university ECTS averages.
Σ(grade × credits) ÷ Σ(credits)
Frequently asked questions
How is the Bulgarian grade average (среден успех) calculated?
It is the arithmetic mean of your grades: add every grade and divide by the number of grades. For example (6 + 5 + 5 + 4) ÷ 4 = 20 ÷ 4 = 5.00, reported to two decimal places.
What is the Bulgarian grading scale?
Bulgaria uses a 2–6 scale: 2 — Poor (Слаб, fail), 3 — Average (Среден), 4 — Good (Добър), 5 — Very good (Много добър), 6 — Excellent (Отличен). 2 is the only failing grade.
Which average maps to which qualitative grade?
Excellent — 5.50 to 6.00; Very good — 4.50 to 5.49; Good — 3.50 to 4.49; Average — 3.00 to 3.49; Poor — below 3.00. So an average of 5.49 is still "Very good", while 5.50 becomes "Excellent".
What is the difference between simple and weighted average?
A simple average counts every grade equally. A weighted average multiplies each grade by its credits or hours and divides by the total weight — used at university, where courses carry different ECTS credit values.
Can I enter grades with decimals?
Yes. Besides whole grades (2–6) you can enter term or yearly averages such as 5.50 or 4.33, and the calculator averages them correctly.
Are my grades stored anywhere?
No. Everything is computed in your browser — no requests are sent and nothing is saved.