Cherchez parmi 8 000+ skins CS2 de notre base — les prix se remplissent automatiquement. Entrez les floats par ligne, obtenez le float moyen, le wear de sortie, le coût total, le seuil de rentabilité et l'EV après commissions.
Ajoutez les skins de sortie possibles des collections.
A Trade-Up Contract converts 10 CS2 skins of the same rarity into 1 skin of the next-higher rarity. The output skin is randomly chosen from the same collection as one of your inputs, weighted by how many of your 10 inputs came from each collection. The float of the output is calculated from the average float of your 10 inputs.
output_float = avg(input_floats) × (output_max - output_min) + output_min
where output_max and output_min are the float-range bounds of the specific output skin. Different output skins have different float caps — some go up to 1.00, others cap at 0.50 or even 0.18 (capped-FN skins like Skeleton Knife Tiger Tooth).
| Wear tier | Float range | Pricing tier |
|---|---|---|
| FN Factory New | 0.00 - 0.07 | Premium tier for most skins |
| MW Minimal Wear | 0.07 - 0.15 | Near-FN clean traders |
| FT Field-Tested | 0.15 - 0.38 | Middle tier — practical price |
| WW Well-Worn | 0.38 - 0.45 | Lower tier — pattern hunters |
| BS Battle-Scarred | 0.45 - 1.00 | Cheapest tier — entry point |
Selling on the Steam Community Market deducts a 15% fee (10% Valve + 5% game-specific). Break-even threshold: input_total / 0.85. Third-party marketplaces (Skinport, Waxpeer, BUFF) take 3-7%, dropping the break-even to input_total / 0.93.
Float-capped outputs: Target skins whose float caps below 1.00. If an output caps at 0.50, even at average input float 0.40 the output will be 0.20 (FT). Outputs capped at 0.18 always produce FN.
Pattern lottery: Case Hardened and Marble Fade outputs roll random patterns — possible Blue Gems or Fire and Ice for multi-multiplier returns. See our Pattern Database for tier rankings.