CS2 Trade Up CalculatorCalculate Your Odds
Calculate trade up contract odds before you commit. Know your chances of hitting that expensive skin and predict the exact output float.
How Trade Up Contracts Work
Trade up 10 skins of one rarity to get 1 skin of the next rarity tier.
Input 10 Skins
Select 10 skins of the same rarity from the same or different collections
Calculate Odds
See the probability of getting each possible outcome skin
Predict Float
Know the exact float range of your output before trading up
Trade Up Float Formula
Where Min and Max are the float range limits of the output skin.
Example Calculation
10 skins with average float 0.15, output skin range 0.00-0.50:
Output = 0.15 × (0.50 - 0.00) + 0.00 = 0.075 (Minimal Wear)
Low Float Strategy
Use 10 low-float input skins to guarantee a low-float output. Factory New trade ups can be worth significantly more.
Trade Up Tips & Strategies
Float Average Matters
The output float is based on the average float of your 10 input skins. Lower average = lower output float.
Mix Collections Strategically
Use skins from collections with expensive outcomes to increase your expected value.
Check Float Ranges
Some skins have restricted float ranges. A "Field-Tested only" skin can't come out Factory New.
Calculate Expected Value
Multiply each outcome probability by its value, then subtract input cost to find profit potential.
Trade Up Risk Warning
Trade up contracts are inherently risky. Even with perfect calculations, you can still get unlucky outcomes. Never trade up skins you can't afford to lose. Our calculator helps you make informed decisions, but doesn't guarantee profits.
Trade Up Calculator Coming Soon
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