Capital Ship Combat Power Rating

This program calculates a simple estimation of the combat effectiveness of a given capital ship against other similar warships. The program evaluates the artillery batteries and the main armor components and determines a veredict for both long and short range engagements. The algorithm takes into account the following parameters:

For offensive rating: number of guns, caliber, muzzle speed and rate of fire for each artillery battery (if its caliber is at least 75 millimeters).

For defensive rating: thickness (maximum), angle and average quality for steel plates used in main belt, main deck, barbettes, main turrets face and conning tower.

Below there is a list showing the values for some historical capital ships. The higher the number, the higher the effectiveness of a capital ship to inflict damage in other ships as well as to withstand impacts inflicted by enemy naval guns. When calculating short-range effectiveness the whole antiship artillery - and not only the main armament - is included in the computing, deck armor is ignored and slopes with positive angles do not have a penalty in their effectiveness.

Battleship Yamato (1945) Overall rating: 384 Offensive rating: 102 Defensive rating: 282

Battleship Iowa (1943) Overall rating: 351 Offensive rating: 89 Defensive rating: 262

Battleship Richelieu (1940) Overall rating: 302 Offensive rating: 68 Defensive rating: 234

Battleship Bismarck (1941) Overall rating: 293 Offensive rating: 97 Defensive rating: 196

Battleship Nelson (1942) Overall rating: 288 Offensive rating: 69 Defensive rating: 219

Battlecruiser Scharnhorst (1940) Overall rating: 277 Offensive rating: 86 Defensive rating: 191

Battleship Bayern (1917) Overall rating: 277 Offensive rating: 94 Defensive rating: 183

Battleship Vittorio Veneto (1940) Overall rating: 255 Offensive rating: 57 Defensive rating: 198

Battleship Mutsu (1921) Overall rating: 255 Offensive rating: 83 Defensive rating: 172

Battleship King George V (1940) Overall rating: 243 Offensive rating: 75 Defensive rating: 168

Battleship Dunkerque (1935) Overall rating: 243 Offensive rating: 52 Defensive rating: 191

Battleship New York (1918) Overall rating: 222 Offensive rating: 59 Defensive rating: 163

Battlecruiser Hood (1941) Overall rating: 219 Offensive rating: 65 Defensive rating: 154

Battleship Viribus Unitis (1912) Overall rating: 210 Offensive rating: 53 Defensive rating: 157

Battleship Queen Elizabeth (1915) Overall rating: 202 Offensive rating: 58 Defensive rating: 144

Battlecruiser Derfflinger (1914) Overall rating: 202 Offensive rating: 62 Defensive rating: 140

Battleship Dreadnought (1906) Overall rating: 179 Offensive rating: 46 Defensive rating: 133

Battleship King Edward VII (1905) Overall rating: 165 Offensive rating: 17 Defensive rating: 148

Battleship Mississippi (1908) Overall rating: 160 Offensive rating: 30 Defensive rating: 130

Battleship Charles Martel (1897) Overall rating: 160 Offensive rating: 20 Defensive rating: 140

Battleship Kaiser Barbarossa (1901) Overall rating: 152 Offensive rating: 19 Defensive rating: 133

Battleship Knyaz Suvorov (1904) Overall rating: 128 Offensive rating: 17 Defensive rating: 111

Pocket battleship Admiral Graf Spee (1939) Overall rating: 113 Offensive rating: 42 Defensive rating: 71