Weighting Factors - How Do Your Grades Count Toward Your Average?

Everything about weighting factors: what they are, why they matter, and how they affect your average.

Not all grades count equally. An exam can have more impact on your final grade than a small assignment. This is called weighting or weighting factors. Understanding how weights work helps you study strategically.

What Are Weighting Factors?

A weighting factor is a number that indicates how heavily a grade counts in your average. The higher the weight, the more influence that grade has.

For example: if an exam has weight 3 and an assignment has weight 1, then the exam counts three times as heavily as the assignment.

Typical Weights in Belgian Schools

In Belgian education, you often see these kinds of weights:

  • Exams: weight 3-5 (count the most)
  • Major tests: weight 2
  • Assignments and tasks: weight 1
  • Oral evaluations: weight 1-2
  • Practical assignments: depends on the study program

Note: Each school and teacher may use different weights. Always check the specific weights for your subjects!

Example: Impact of Weights

Suppose you have these grades for math:

  • Exam: 12/20 (weight 3)
  • Major test: 15/20 (weight 2)
  • Assignment: 18/20 (weight 1)

Calculation: (12×3 + 15×2 + 18×1) / (3+2+1) = (36 + 30 + 18) / 6 = 84/6 = 14/20

Without weighting, the average would be (12+15+18)/3 = 15/20. Due to weighting, your average is lower because the exam (your lowest grade) counts the most!

Why Weights Matter

Understanding weights helps you study smart:

  • Focus your preparation on components with the highest weight
  • A good grade on an exam can compensate for a poor grade on an assignment
  • When in doubt about where to study: choose the component with the highest weight

Where to Find the Weights?

You can find the weights for your subjects in several places:

  • In the course guides or syllabi you receive at the beginning of the year
  • In Smartschool or your school's digital platform
  • By asking your teacher directly

Strategic Approach to Weights

  • Know the weights of all your subjects and components
  • Invest more time in components with higher weights
  • Calculate in advance what grade you need for a certain average
  • Don't underestimate small components - together they can also have a big impact

Calculate Your Weighted Average

Use our calculator to calculate your weighted average. Enter your grades and weights and see your average instantly.