Compare contract estimates: check the wear, enter actual floats, then verify available listings.
How to choose and build a contractCompare input cost and profit chance → open a card in the builder → check live listings.
Prices are asking prices for the stated wear, not guaranteed sale proceeds. The full quantity and selected floats may cost more. The selected selling fee is an assumption; deposit and withdrawal fees are extra.
Regular contracts · FT · Field-Tested
The Vertigo Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · WW · Well-Worn
The Vertigo Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · FN · Factory New
The Control Collection + The Boreal Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · FN · Factory New
The 2021 Dust 2 Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · FN · Factory New
The 2021 Dust 2 Collection + The Radiant Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · FN · Factory New
The 2021 Dust 2 Collection + The Boreal Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · BS · Battle-Scarred
The Train 2025 Collection + The Overpass Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · BS · Battle-Scarred
The Train 2025 Collection + The Overpass Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · BS · Battle-Scarred
The Train 2025 Collection + The Overpass Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
StatTrak™ · BS · Battle-Scarred
The Prisma 2 Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
StatTrak™ · BS · Battle-Scarred
The Prisma 2 Collection + The Fever Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
StatTrak™ · BS · Battle-Scarred
The Prisma 2 Collection + The Danger Zone Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · WW · Well-Worn
The Gallery Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · WW · Well-Worn
The Gallery Collection + The Kilowatt Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · WW · Well-Worn
The Gallery Collection + The Recoil Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · FT · Field-Tested
The CS20 Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · BS · Battle-Scarred
The Dead Hand Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Regular contracts · BS · Battle-Scarred
The Dead Hand Collection + The Recoil Collection1 · Contract inputs
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Profitable CS2 trade-up contracts whose basket can be filled from live listings in full: set price, expected return and ROI are computed from specific items with floats, not from average wear prices.
| Result | Transition | Input cost | Expected return | ROI | Chance of profit | Markets | |
|---|---|---|---|---|---|---|---|
 PP-Bizon | Carbon Fiber Factory New | Consumer Grade → Industrial Grade | $33.68 | $3.87 | −88.5% | 0.0% | SkinBaron | Open |
Ordinary calculators price trade-ups at the average wear price — a pretty number you cannot actually buy. This list works the other way round: we take the best contracts of every transition, look for real lots behind them and keep only those where all ten items can be bought and the average float lands in the required range. The list is recomputed every half hour, so the profit here is not theory but the price at which items were selling at the moment of the run. Open any row to see all the lots, their floats and the buy links.
Prices are asking prices for the stated wear, not guaranteed sale proceeds. The full quantity and selected floats may cost more. The selected selling fee is an assumption; deposit and withdrawal fees are extra.
A collection’s chance equals the share of its items in the contract, and inside that collection the result is drawn uniformly from every skin of the next rarity. Seven inputs from a collection with four outcomes give each of them 7/10 ÷ 4 = 17.5%, while three inputs from a collection with five outcomes give 3/10 ÷ 5 = 6%.
Each input’s float is normalized inside its own range: (float − min) ÷ (max − min). The average of those ten numbers is projected into the range of the skin you get: output float = min + average × (max − min). That is why the same set of inputs can land in different wears with very different prices.
The range is expected profit across possible input floats, after the selected fee. It is not the minimum and maximum payout of one contract. A positive average does not prevent a loss.
Yes: since October 2025 five Covert items from one collection are exchanged for a knife or gloves from that collection. Five StatTrak™ Covert items give a StatTrak™ knife — StatTrak™ gloves do not exist. This is the only five-item contract; every other transition takes exactly ten inputs.
Yes, since May 2026 Souvenir items go into a contract alongside normal ones: every Souvenir attribute — stickers and tournament marks — is removed and the result is a normal item of the next rarity. Souvenirs cannot go into a StatTrak™ contract. We pick the Souvenir version of an input when it is cheaper than the normal one and has enough listings.
A calculator shows what a contract would cost at the average wear price. We show a basket you can buy: ten specific lots with floats, prices and links, plus the exact result float for that set.
Yes, this page. Basket building, EV, ROI, outcome odds and lot links are free and need no account, and the lots are pulled from several markets at once instead of a single one.
The top list is recomputed in the background every thirty minutes, and listings for a given skin are cached for ten minutes. Each basket page has a "Refresh listings" button that queries the markets again.
If the markets do not have ten listings with the required float and price, the basket remains incomplete and shows the number found. Lower-tier transitions fill more often than knife contracts.
A trade-up contract is an in-game CS2 mechanic by Valve. This site does not trade, does not accept items and is not affiliated with Valve Corporation. Prices come from external markets, refresh hourly and may differ from the live ones; buying ten lots at the shown price is not always possible. On top of the selling fee there are deposit and withdrawal fees, and an item bought on a third-party market arrives by trade and cannot be resold on Steam for seven days. Expected value is an average over many repetitions, not a promise about one attempt: for most contracts the chance of getting back less than you spent is above 50%. Informational material, not financial advice.
