CS2 Trade Up Profit & Float Calculator
1. Input Your 10 Skins
Enter the float value and purchase price for each of the 10 skins used in the contract.
2. Target Outcome Parameters
Trade Up Projection
Average Input Float
0.0000
Resulting Float
0.0000
Total Contract Cost
$0.00
Potential Profit
$0.00
Wear Condition: –
The Ultimate Guide to CS2 Trade Up Contracts
In Counter-Strike 2, the Trade Up Contract is a mechanic that allows players to exchange 10 weapon skins of the same rarity for one weapon skin of the next highest rarity. While it may seem like a simple gamble, the underlying math is governed by specific formulas involving Float Values and Collection Odds.
How the CS2 Trade Up Formula Works
The outcome of a trade-up isn't random. The most critical factor is the Float Value. Every skin in CS2 has a float between 0.00 and 1.00, determining its wear (Factory New, Minimal Wear, etc.).
Outcome Float = (Average Float of 10 Inputs) × (Max Float of Outcome - Min Float of Outcome) + Min Float of Outcome
Understanding Wear Ranges
When calculating your trade-up, you must know the float ranges for the potential outcomes. For example, some skins are capped at 0.06 or 0.08, meaning they can never be truly "battle-scarred."
- Factory New: 0.00 – 0.07
- Minimal Wear: 0.07 – 0.15
- Field-Tested: 0.15 – 0.38
- Well-Worn: 0.38 – 0.45
- Battle-Scarred: 0.45 – 1.00
Profitability and Probability
A profitable trade-up strategy involves sourcing "low-float" skins at a low price to "force" a Factory New outcome from a collection where the top-tier skin is valuable. Our calculator helps you determine if the 10 skins you've selected will result in the wear condition you desire.
Tips for Successful Trade Ups:
- Mix Collections: You can use skins from different collections. The odds of receiving a specific skin are based on the ratio of possible outcomes from the collections used.
- Check the Caps: Always verify the minimum and maximum float of the target skin on a database like CS2Stash.
- Total Cost vs. Expected Value (EV): If you have a 20% chance of hitting a $100 skin and the other 80% results in a $10 skin, your EV is $28. If your 10 inputs cost more than $28, the trade-up is mathematically "bad."