![[UPD] Fishing Master Calculator](/media/optimized/d9bd54cee3be9fd9619f79bf-768.webp)
This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own [UPD] Fishing Master session. It will not click the shop.
Drop probability
Mythical skill spin chance
Chance of at least one Mythical skill in the number of Skill Master spins you enter. This uses independent spins only. It does not add the guaranteed Mythical at 500 spins, and it does not read your account.
Chance of at least one success = 1 − (1 − chance per attempt) raised to the number of attempts.
0.5% is the Mythical rate printed on one Skill Master panel. A separate pity guarantee at 500 spins is not part of this chance. Change the percent if your panel differs.
Drop probability
Mythical aura roll chance
Chance of at least one Mythical aura in the number of Aura Master rolls you enter. Pity and the Divine row are separate rules. Change the percent to match the live panel.
Chance of at least one success = 1 − (1 − chance per attempt) raised to the number of attempts.
0.7% is the Mythical row on one Aura Master panel. Pity at 150 rolls is separate. Divine is listed at 0.1% with pity at 1,000 and is not this calculator.
Material planner
Coins still needed
How many Coins you still need for a price you type. Leave Coins per unit at 1 so the required field is the sticker price. This does not read your balance or include quest fish you must keep.
Required total = materials per upgrade × number of upgrades. Missing = max(required total − materials already owned, 0).
The 12,000 default is the Iron Rod price shown at Mankie's starter shop in an October 10, 2026 walkthrough. Use 40000 for the Jungle fishing unlock, or type the price on your live menu.