Tools
CS2 calculators
Probability and cost tools built on the same data and odds engine as the rest of DropLabz.
Knife chance calculator
Chance of pulling a knife after N cases, and how many cases you'd need for a target probability.
Trade-up calculator
Every output of a trade-up contract with exact odds, output float and wear, EV and profit after Steam fees.
Case opening cost calculator
Estimated total cost of opening any case N times, from a real Steam price snapshot.
Bulk case opening calculator
Monte-Carlo thousands of openings of any case: total cost, return, ROI and the spread of outcomes.
Looking for expected value instead of raw odds? See Case ROI & expected value, or the cheapest cases to open.
The knife chance calculator uses the same per-case rare-special odds shown on CS2 knife odds by case and best cases for knives; browse every knife family and the cases that drop it in the knife directory.