As a guide a single A* grade at GCSE is worth 58 points, an A grade is worth 52 points, a C grade is worth 40 points and so on.
Fel canllaw, mae gradd A* TGAU yn werth 58 o bwyntiau, mae gradd A yn werth 52 o bwyntiau, mae gradd C yn werth 40 o bwyntiau ac ati.