The size standards for cake making are as follows:
Round cake,
The diameter of 1 lb is 17CM, and the square one is 12CM.
2 pounds, 23CM in diameter, square 16CM.
3 pounds with a diameter of 27CM; ; Square 20CM.
1.5 lbs. The diameter is 20 cm; ; Square 14CM.
2.5 pounds with a diameter of 25CM; ; Square 18CM.