Calculator
Grade average calculator
This calculator finds the ordinary arithmetic average of Polish school grades. Every entered grade has the same weight, and the list is processed only in your browser.
Reviewed: 3 August 2026Processed locally
Calculator
Enter data
A list of grades from 1 to 6 and the required decimal precision. Fields marked with an asterisk are required.
How to use the calculator
- Enter grades separated by commas, semicolons or spaces.
- Choose the precision and select “Calculate”.
- Review the average, sum and number of grades used.
Calculation details
Formula and calculation method
Average = the sum of all grades ÷ the number of grades. The result is rounded only at the end.
Worked example
For grades 5, 4, 3 and 5, the sum is 17 and the average is 17 ÷ 4 = 4.25.
Limitations
- A school may assign different values to plus and minus grades or use its own classification rules.
Sources
Engine version: 1.0 · Last reviewed: 3 August 2026
Frequently asked questions
Can I enter grades with pluses and minuses?
Yes. By default, a plus adds 0.5 and a minus subtracts 0.5 from a grade.
Are my grades saved?
No. The calculation happens locally and the grade list is not sent to a server.