The calculator combines your scores from each assessment component using the IB weighting for Marine Science. It then uses the official IB grade boundaries from a past session to calculate the overall grade.

This calculator uses official IB component weightings and historical grade boundaries to estimate your final grade in Marine Science. While it can provide a good indication of your likely result, your actual grade may differ if the official grade boundaries for your exam session change.

Yes, but only as an estimate. The calculator predicts your Marine Science grade based on your entered marks and past grade boundaries. Your actual grade will depend on your final component scores and the official grade boundaries for your exam session.

Enter your best estimate for each Marine Science assessment component. If you have already received marks for coursework, practical work, or Internal Assessments, you can use those values directly. For exams that have not yet been taken, use your predicted or expected scores.

Teachers often consider factors beyond raw marks, such as class performance, coursework quality, and expected improvement before exams. This calculator uses only the marks you enter and historical grade boundary data.