Free tool

BTS SIO mark simulator

Estimate your BTS SIO average (SISR and SLAM options) using the official coefficients (decree of 8 July 2024). Enter your marks out of 20: the calculation and result update automatically.

E1 General knowledge and expression
coeff 2 /20
E2 English expression and communication
coeff 2 /20
E3 Mathematics for computing
coeff 3 /20
E4 Economic, legal and managerial culture (CEJM)
coeff 3 /20
E5 Support and provision of IT services
coeff 4 /20
E6 Systems and network administration
coeff 4 /20
E7 IT services cybersecurity
coeff 4 /20
– /20

Enter your marks to see your average.

How does it work?

  • The average is weighted by the coefficients: average = sum(mark × coeff) ÷ sum of entered coefficients.
  • Pass with an overall average of at least 10/20.
  • Between 8 and 10: resits (retakes) are possible, provided you have an average of at least 10 in the professional exams (E5, E6, E7).
  • Optional exams (second modern language, advanced maths...) only add points above 10: not included here.

Official coefficients: decree of 29 April 2019 amended by the decree of 8 July 2024 (Annex III), applicable from the 2025 session. Total compulsory coefficients: 22. SISR and SLAM have the same coefficients.

Aim higher than average

Cybersecurity (E7, coeff 4) carries a lot of weight. Practise on our past exam papers with worked solutions and our BTS SIO courses, with quizzes; standalone labs you can launch separately complement them.

E7 past exam papers with worked solutions