Live Market Analytics

CS2 Case
ROI Calculator

Find out if it's actually worth opening that case. Calculate the exact Expected Value (EV) and run a 100-case simulation.

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How does the CS2 ROI Calculator work?

The CS2 Case ROI Calculator takes the current Steam Community Market prices of the case and the key ($2.49 USD) and compares it against the official drop rates published by Valve. By multiplying the drop probability of each tier by the average value of skins in that tier, we determine the Expected Value (EV) of a single unboxing.

What are the official CS2 drop rates?

Valve has officially released the drop probabilities for cases in CS:GO/CS2 (originally required by Chinese law). The rates are standard across almost all weapon cases:

  • Mil-Spec (Blue) — 79.92%
  • Restricted (Purple) — 15.98%
  • Classified (Pink) — 3.20%
  • Covert (Red) — 0.64%
  • Special Item (Knife/Glove) — 0.26%

Frequently Asked Questions

Understanding case profitability in CS2.