## FANDOM

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Ship modernization is used to increase Firepower, Torpedo, Anti-Air, and Armor stats. In addition, Maruyu can be used to increase Luck, while DE can increase HP, Anti-Submarine, and Luck stats.

To modernize a ship, first pick the ship you want to upgrade, then choose 1 to 5 ships to "merge". You will lose them in the process, make sure you didn't pick the ones you want to keep. A consumed ship's equipment is wasted as well, you will not retain any equipment still equipped on the consumed ship. Remember to remove any valuable equipment the consumable ship might possibly have. Also stock equipment can be broken down for small amounts of material though most likely not worth the effort.

## General Modernization (Firepower, Torpedo, Anti-Air, Armor)Edit

• You will lose those modernization upgrades after remodel. Don't let it discourage you from modernizing your girls though, unless they are close to remodel level.
• There is a maximum cap for those upgrades (refer to infoboxes on ship pages or to tables listed here).
• Modernization can fail with +1 only, see the table below for details (0 will give you the penguin failure screen, all other results will display as the success message).
• A formula to calculate the amount achieved in a successful modernization is (i is summary input):
$i + \left \lfloor \frac{i + 1}{5} \right \rfloor$[1]
• A formula to calculate the amount achieved in a failed modernization is:
$\left \lfloor \frac{1}{2} \left ( i + \frac{i + 2}{5} \right ) \right \rfloor$[1]
Input1234567891011121314151617181920
Success 12356789111213141517181920212324
Fail 012233455667889910111112
Efficiency 507583.387.59083.385.787.588.99086.487.588.589.39087.588.288.989.590
Input2122232425262728293031323334353637383940
Success 2526272930313233353637383941424344454748
Fail 1213141415151617171818192020212122232324
Efficiency 88.188.689.189.69088.588.989.389.79088.789.189.489.79088.989.289.589.790
• The chance of success is 50% for each stat you're trying to boost with modernization, i.e. you can attempt to modernize for +15 firepower and +15 armor, but end up with +15 firepower and +8 armor as the result.
• Values that are most efficient in the local cluster are bolded. Players should attempt to modernize at these values for maximum points per ship consumed. Efficiency here is the average number of points you get factoring the 50% chance for modernization success, relative to the number of points input.
• For instance, if attempting to maximize Anti-Air efficiency, you can use 5 Isuzu Kai for +5, +5, +20 and +10. More commonly for low-level admirals, combining an Isuzu Kai from 1-5 with a Fusou from 2-2 leads to +5, +1, +5 and +5 which can be used as is, or supplemented with destroyers/submarines to add torpedo stat more efficiently, though torpedoes are rarely the limiting stat.
• The calculations are modified as a ship reaches its cap. When the cap is approached, success is taken as the max addable points, while failure is still the failure points. For instance, if there are 5 points remaining, using a 5 point input yields 5-3 or an average efficiency of 80%, which is significantly inferior to either the 4 point input or 3 point input.

## Luck Modernization (Maruyu)Edit

Following the December 2013 update, Maruyu can be used as Modernization material for +1.2 luck (+1.6 luck if she is remodeled to Maruyu Kai), result will be rounded down after adding random number below 1. You can still increase a maxed-out ship's luck through modernization. Luck gained through modernization is retained upon remodeling.

Maruyu12345
Expected 1.22.43.64.86.0
Success 23456
Fail 1234
Chance 20%40%60%80%N/A
Maruyu Kai12345
Expected 1.63.24.86.48.0
Success 24578
Fail 1346
Chance 60%20%80%40%N/A

Note:

• Although the indicator will display +6 luck for 5 Maruyu Kai before modernization, it is guaranteed to award +8 luck once carried out.
• DE modernization can also be used to increase luck.

## DE Modernization (HP, ASW, Luck)Edit

After the 29/9/17 update it's possible to use DE to increase HP, ASW and Luck[2][3][4].

• Using at least one DE will have a chance to increase ASW and/or Luck.
• Using two different DE of the same class (i.e., Shimushu + Kunashiri or Etorofu + Matsuwa, referred as pair below) will have a chance to increase HP.
• For unmarried ships HP can always be increased by maximum 2 points overall. For married ships it can be increased by maximum 2 points with the following exceptions[5]:
• ASW can be increased by maximum 9 points overall.
• Ship classes that have 0 base ASW stat will not receive the modernization.
• Luck can not be increased past its maximal value.
• Bonus values are preserved after remodel.
• The following are some preliminary results/speculations about success rates (note that or assumes non-maxed stats, that is, for example, +1 HP or +1 Luck with maxed Luck can give 0 HP and Luck, ~50% for +1 HP and 0% for Luck since it's maxed).[6]
CombinationFormsResultSamples
1 DEBase and Kai+1 ASW or +1 Luck, 60/40~50
1 DE pairKai+1 HP or +1 Luck, 50/50? Independent 20-30% for +1 ASW?50-60+
1+ DE pair + 0+ DEBase and KaiStill +1 HP or +1 Luck, 50/50?10+
2 different DE pairs + DEKaiCan give +2 ASW1

## Leveling (Evasion, LOS, ASW)Edit

Generally, those stats are unaffected by modernization and follow the following formula instead (ASW can also be raised using DE modernization):

$f(lv) = f(1) + \left \lfloor (f(99) - f(1)) \times \frac{lv}{99} \right \rfloor$
• The current value is determined only by ship's current level lv and remodel form (Base, Kai, Kai Ni, etc.) with its associated constants f(1) and f(99) (refer to infoboxes on ship pages or to tables listed here).
• f(1) is the base or starting value for this remodel form: value at level 1 for ships in base form, arbitrary value otherwise (that is, not the value at remodel level).
• f(99) is the value at level 99 (that is, not the maximal value).
• For example, for Shoukaku Kai Ni A evasion(1) = 36 and evasion(99) = 81, so evasion at remodel level (88) is 36 + floor((81 - 36) * 88 / 99) = 76, while the maximal value at level 165 is 36 + floor((81 - 36) * 165 / 99) = 111.
• After marriage the value continues to grow as lv > 99. For example, Shimakaze Kai has less evasion than Yukikaze Kai before marriage (67 + floor((99 - 67) * lv / 99) > 55 + floor((99 - 55) * lv / 99) when lv < 97) and more after (67 + floor((99 - 67) * lv / 99) < 55 + floor((99 - 55) * lv / 99) when lv > 101).
• With the DE modernization bonus the ASW formula is
$asw(lv) = asw(1) + \left \lfloor (asw(99) - asw(1)) \times \frac{lv}{99} \right \rfloor + bonus$

## Reference TablesEdit

All ships will provide a fixed input for modernization.

### DestroyersEdit

Class Name Name
Shimakaze

- +2 +1 +1 -

20 +1 +2 +1 +2 -
Fubuki

+1 +1 - - -

20 +1 +1 +1 +1 -

70 +2 +2

-

20 +1 +1

70 +2

20 +1

30
Ayanami

+1 +1 - - -

20 +1 +1 +1 +1 -

70 +2 +2

-

20 +1 +1

60 +2 +2
Mutsuki

+1 +1 - - -

20 +1 +1 - - -

65 +2 +1

-

20 - +1 -

65 +1 +2 +1

20 - +1 -

75 +1 +2 +2

20 - +1 -

+1

+1

-

25 -

+1

20 +1
Akatsuki
+1 +1 - - -

20 +1 +1 +1 +1 -

70 +2
-

20 +1
70 +2

20 +1

Hatsuharu

+1 +1 - - -

20 +1 +1 +1 +1 -

65 +2

-

20 +1

70 +2 +2
Shiratsuyu

+1 +1 - - -

20 +1 +1 +1 +1 -

-

60 +2 +2

20 +1 +1

55 +2 +2

20 +1 +1

+1

30

-

75 +2 +2

30 +1 +1
Asashio

+1 +1 - - -

20 +1 +1 +1 +1 -

70 +2 +2

85

- +1

20 +1 +1

65 +2 +2

20 +1 +1

75 +2 +2

88 +1 +2

35 +1 +1

Kagerou

+1 +1 - +1 -

20 +1 +1 +1 +1 -

-

+1

+2 +2

-

+1 +1

30

+1 +1

20

- -

35

45

30

35

Yuugumo

- +1 - +1 -

30 +1 +1 +1 +1 -

45 -

30 +1

0 0

Type 1934 +1 +1 - - -
Z1改
30 +1 +1 - - -
70
Z3改
30
70
Akizuki

- +1 +3 +1 -

40 +1 +1 +3 +1 -

Maestrale +1 +1 - - -
Libeccio改
30 +1 +1 +1 +1 -
Kamikaze

+1 +1 - - -

50 +1 +1 - - -

Class Name Name

Class Name Name
Tenryuu

- +1 - +1 -

20 +1 +1 +1 +2 -

Kuma

- +1 - +2 -

20 +2 +1 +1 +2 -

+1

+1

65 +5 - +1

10 - +4

50 +1 +5

10 - +4

50 +1 +5
Nagara

- +1 - +2 -

20 +2 +1 +1 +2 -

+1

12 +1 +4

50 +2

20 +1 +1

17

75 +2 +2
Sendai

- +1 - +2 -

20 +2 +1 +1 +2 -

60 +1

+1

20

60

20

48
Yuubari

+1 +1 +1 +1 -

25 +1 +1 +2 +1 -
Agano

+1 +1 +1 +2 -

35 +2 +1 +1 +2 -

Ooyodo

+1 - +2 +2 -

35 +2 - +2 +2 -
Katori

- +1 - +1 -

35 +1 +1 +2 +1 -

Class Name Name

### Heavy Cruisers/Aviation CruisersEdit

Class Name Name
Mogami

+2 +1 - +2 -

10 +2 +1 +3 +2 -

30

35

Furutaka

+2 +1 - +2 -

25 +2 +1 +1 +2 -

65

25

65
Aoba

+2 +1 - +2 -

25 +2 +1 +1 +2 -

55
Myoukou

+2 +1 - +2 -

25 +3 +1 +1 +2 -

70 +2

25 +1

65 +2

25 +1

65 +2

25 +1

65 +2
Takao

+2 +1 - +2 -

25 +3 +1 +1 +2 -

18 +2 +4

75 +5

25 +3 +1

65 +4 +2
Tone

+2 +1 +1 +2 -

25 +3 +1 +2 +2 -

70 +3

25 +2

70 +3
Admiral Hipper +2 +1 - +2 -
Prinz Eugen改
45 +3 +2 +1 +3 -
Zara +3 - - +2 -
Zara改
40 +4 - +1 +2 -
Pola改
Class Name Name

### BattleshipsEdit

Class Name Name
Nagato

+5 - +1 +4 -

30 +5 - +2 +5 -

Kongou

+3 +3

25 +4 +3

75 +4

25 +3

75 +4

25 +3

80 +4

25 +3

75 +4
Fusou

+4 - +1 +3 -

20 +4 - +2 +4 -

80 +5 +3

20 +4 +2

80 +5 +3
Ise

+4 - +1 +4 -

10 +4 - +3 +4 -

Yamato

+7 - +2 +5 -

60 +6 - +3 +6 -

40
Bismarck +3 - +1 +3 -
Bismarck改
30 +4 - +1 +4 -
50 +2
75 +1
Vittorio Veneto +3 - +1 +3 - 35 +5 - +2 +3 -
Roma改
Iowa +6 - +3 +5 -
Iowa改
50 +6 - +3 +5 -
Queen Elizabeth +4 - +2 +4 -
Warspite改
75 +4 - +2 +4 -
Class Name Name

Class Name Name
Houshou

- - +1 +2 -

25 - - +2 +2 -
Ryuujou

- - +2 +2 -

25 - - +3 +2 -

75 +3
Hiyou

- - +3 +2 -

25 - - +3 +3 -

80 +4
Shouhou

- - +2 +2 -

25 - - +3 +2 -

Chitose

- - +1 +2 -

10 - - +2 +2 -

12 +2 +1

+3

35 - +3 +3

50

+1

10 +2 +2

12 +2 +1

+3

35 - +3 +3

50
Hei
あきつ丸
- - +1 +1 -
あきつ丸改
25 +1 - +1 +1 -
Taigei/Ryuuhou

- - +1 +2 -

25 - - +2 +2 -

50
Akitsushima

- - +1 +1 -

35 - - +2 +1 -
Mizuho

+1 - +1 +2 -

40 +1 +2 +1 +2 -
Class Name Name

### Standard Carriers/Armored CarriersEdit

Class Name Name
Akagi

- - +5 +3 -

30 - - +5 +4 -
Kaga

Souryuu

- - +4 +3 -

30 - - +4 +4 -

78 +5
Hiryuu

30 +4

77 +5
Shoukaku

- - +4 +3 -

30 - - +4 +3 -

80 +5 +5

88 +6

25 +4 +3

77 +5 +5

90 +6
Taihou

- - +5 +5 -

40 - - +5 +5 -
Unryuu

- - +3 +3 -

50 - - +4 +3 -

Graf Zeppelin +2 - +3 +4 -
Graf Zeppelin改
50 +2 - +4 +4 -
Aquila +1 - +3 +2 -
Aquila改
45 +1 - +3 +3 -
Class Name Name

### SubmarinesEdit

Class Name Name
Kaidai VI

- +2 - - -

50 - +2 - - -
Junsen Type B Kai Ni

+1
Junsen Type B

Junsen 3

Sentoku

+1 +1 +1

35 +1
Type 3 S.T.V.
まるゆ
- - +1.2
まるゆ改
20 +1 - +1.6
Type IXC +2 - -
U-511改
35 +1 +2 - -
Type IXC/Ro-series

55
Class Name Name

Class Name Name
Akashi

- - +1 +1 -

35 - - +1 +1 -
Revised Kazahaya

25 +1 +1 +2
Class Name Name

## Examples and ReferencesEdit

1. 1.0 1.1 For example, modernizing AA with 5 Isuzu Kai:
• Summary input = 5 * 4 AA = 20 AA.
• Amount modernized on success = 20 + floor((20 + 1) / 5) = 24 AA.
• Amount modernized on failure = floor((20 + ((20 + 2) / 5)) / 2) = 12 AA.