Method for calculating equipment number of ship and method for deciding size of anchoring device and mooring device sing the equipment number

The present invention relates to a method of calculating the number of designs of ships and a method of determining the size of a mooring device and a mooring device using the calculated number of designs. According to an embodiment of the present invention, there is provided a method of calculating a number of designs of a ship, the method comprising: obtaining a reception surface area of the ship; Obtaining a projection cross-sectional area of the upper side of the ship; Obtaining a projection cross-sectional area of the upper portion of the ship; And calculating the number of designs using the reception surface area of the ship, the projection cross-sectional area of the upper side surface, and the projection cross-sectional area of the upper surface, wherein the reception surface area of the ship is such that the hull of the ship hits the water The upper side of the ship means the upper part of the load water line on the side of the ship and the upper part of the front side of the ship means the upper part of the load water line on the front side of the ship, A method of calculating is provided.