Drop chance calculator

RNG Drop Chance Calculator

Calculate item, pet, and Slayer drop odds using the legacy Magic Find, Pet Luck, and RNG Meter rules from SkyblockTools.

RNGesus

Drop chance inputs

Legacy formula with the 5% Magic Find gate, Pet Luck for pets, and Slayer table weights.

Slayer settings
Reset

Result

Standard drops multiply eligible base chance by Magic Find and optional Pet Luck.

Adjusted chance

0.00%

Odds: 1 in Infinity

MF bonus

+0.00%

Pet Luck

+0.00%

After attempts

Enter attempts

Formula: p = p0 x (1 + MF / 100)

Substitution: 0.00% x 1.00 = 0.00%

Magic Find and Pet Luck are ignored by the legacy 5% base chance gate.

Magic Find Gate

Legacy RNGesus only applies Magic Find below 5% unless the boss override is enabled.

Pet Luck

Pet Luck joins Magic Find only when the target is marked as a pet.

Slayer Weights

V2 includes the legacy default Slayer totals, including main and extra drop tables.

Default Slayer Pool Totals

Revenant Horror

Main 4,677 / Extra 873

Tarantula Broodfather

Main 4,053 / Extra 933

Sven Packmaster

Main 2,327 / Extra 863

Riftstalker Bloodfiend

Main 67 / Extra 20

Voidgloom Seraph

Main 4,169 / Extra 932

Inferno Demonlord

Main 9,784 / Extra 3,240

How to read RNGesus odds

The adjusted chance is your per-roll probability after the eligible stat bonuses are applied. The 1 in N value is the same probability inverted into a grind-friendly estimate.

For Slayer drops, use the wiki drop weight and table type. The calculator adjusts that weight by your RNG Meter progress before applying Magic Find when the resulting base rate remains below five percent.