Since International Maritime Organization (IMO) has adopted "The Standards of Ship Manoeuvrability" as IMO Resolution MSC.137(76), the ship manoeuvrability is evaluated under this standard. Therefore, ship designers have to know the accurate ship manoeuvring characteristics at the initial design stage. One of the estimation methods for ship manoeuvring characteristics is a computational simulation. Some papers have proposed approximate formulas for hydrodynamic derivatives based on the model ship tests, so we can simulate the ship manoeuvring motion with the hydrodynamic derivatives.However recent full ships aren't included in the range of ship types on the papers. We need to adjust the formulas for hydrodynamic derivatives, so as to simulate the manoeuvring motion of recent full ships.In this paper, we propose the method to revise the approximate formulas for hydrodynamic derivatives of full ships. We confirm the effectiveness of the practical prediction method using proposed formulas. It will be expected that this method is very useful to estimate the manoeuvring characteristics of recent full ships at the initial design stage.