Battleship Cooldown Calculator

Instructions:

Choose a ship from the dropdown.
Modify her reload stat if necessary (in case she’s oathed, is under level 125, etc.)
Enter any relevant bonus modifiers. These are not automatically generated.
Choose the ship’s equipment.

(ClickTap to show/hide instructions)

Tips:

Do not adjust the main gun cooldown based on the equipped in-game numbers. Those are reload-adjusted. This calculator already handles that.
The initial cooldown adds 1.5s based on in-game code. In practice, the fight may start slightly later or sooner depending on lag and some fight-specific factors.
If something is off by 0.01s, that’s due to rounding. This calculator rounds to the nearest 0.01s.
Watch out for cat skills, not just talents. Some cats can change RLD stat for the flagship.
You can provide custom data for any of the dropdowns by choosing “Other” from the bottom of the menu.
The temporary RLD buff calculates it based on one buff per main gun cycle for the shot timers. This will be accurate on a ship like Hood if she always procs, but won’t be accurate if she doesn’t proc and won’t be for units like Howe where it’s on a timer.

(ClickTap to show/hide tips)

Choose Ship:

Base RLD Stat:

(without skills, Fleet Tech, or cats)

Ship is oathed?

and with 200 affinity

Bonus RLD Stat:

from Fleet Tech and cats

Reload Percentage Buff:

from skills, e.g. from Queen Elizabeth

High Standard Fire Control Radar Equipped?

(or Admirality Fire Control Table)

Cooldown Reduction Percent:

for all shots, for example on Champagne

First Cooldown Reduction Percent:

for one shot, for example on King George V

Temporary Reload Buff?

for example, from Hood

Temporary RLD Buff Duration:

Temporary RLD Buff Percent:

Main Gun Cooldown:

Main Gun Cooldown:

Main Gun First Cooldown:

Approximate Main Gun Shot Timers:

Exact strike timers depend on some fight-specific factors and can be affected by lag.

If you notice any bugs or there are any problems or concerns, please let me know on Discord at traneptora. You can also open an issue on the GitHub repository.