Enter pack odds for any insert type, set your quantity, and see hit probability, expected hits, and reverse calculations.
The probability you want to hit an insert at least once. The calculator tells you how many packs you'd need.
Enter pack odds as printed. Supported formats: 1:4, 1 in 4, 1/4, or just 4.
Probability of hitting at least one of any listed inserts across your total packs.
Assumes independent trials and pack odds are uniform. Per-pack hit chances are treated independently across inserts.
