CS2 Trade Up Calculator

Free CS2 trade up calculator with live prices from 12+ marketplaces. Calculate exact profit, float values & odds. Includes reverse trade up lookup. Used by 50K+ traders.

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Saved Trade Ups

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Possible Outcomes

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Calculation inaccuracies may occur. Use at your own risk.

Calculator Statistics

Live market prices
Accurate float formulas
100% free to use

How CS2 Trade Up Contracts Work

1

Select 10 Input Skins

Choose 10 skins of the same rarity. They can be from different collections, which affects your possible outcomes.

2

Float Value Calculation

The output float is calculated using the average float of your inputs, scaled to the output skin's float range.

3

Get Higher Rarity Skin

Receive one skin of the next rarity tier. The specific skin is randomly chosen from all possible outcomes based on collection overlap.

Forward Trade Up Calculator

Select your input skins and instantly see all possible outcomes with their probabilities, expected values, and profit potential.

Reverse Trade Up Finder

Pick your dream skin first, then discover which input combinations can achieve it. Perfect for targeting specific high-value outcomes.

Profit & EV Calculator

See expected value, profit margins, and ROI for every trade up. Uses live market prices from multiple sources.

Float Value Calculator

Precise float calculations using CS2's actual formula. Know exactly what wear condition your output will be.

How CS2 Trade Up Contracts Work

A CS2 trade up contract is one of the most powerful mechanics in Counter-Strike 2 for building inventory value. The concept is straightforward: you submit 10 skins of the same rarity into the trade up contract menu, and the game returns one skin of the next higher rarity tier. For example, 10 Mil-Spec (blue) skins produce one Restricted (purple) skin, 10 Restricted skins produce one Classified (pink) skin, and so on up to Covert and even knife-tier items.

The output skin is not random across all skins in the game. It is selected from the collections your input skins belong to. If you use 7 skins from the Kilowatt Collection and 3 from the Revolution Collection, there is a 70% chance the output comes from Kilowatt and a 30% chance it comes from Revolution. This collection-based probability system is what makes a trade up calculator essential for anyone serious about profit.

The output skin's float value (wear condition) is determined by a precise formula: Output Float = (Average Input Float x (Max Float - Min Float)) + Min Float. The average float of all 10 input skins is mapped onto the output skin's float range. This means you can control the output condition by carefully selecting input floats, which directly affects the output's market value.

Understanding these mechanics turns trade ups from gambling into calculated investments. With the right CS2 trade up calculator, you can evaluate every possible outcome, calculate expected profit, and only commit when the numbers are in your favor.

Why Use a CS2 Trade Up Calculator?

Without a trade up calculator, you are essentially gambling blind. A single CS2 trade up contract can cost anywhere from a few cents to thousands of dollars in input skins. A profit calculator removes the guesswork by showing you every possible outcome, its probability, and the expected value before you commit a single skin.

Our CS2 trade up calculator uses live market prices from Steam, Buff163, and other sources to calculate real-time expected value (EV). If the EV is positive, the trade up is profitable on average. You can compare across collections, test different input combinations, and find the sweet spot where risk meets reward.

The reverse trade up finder is especially powerful. Instead of guessing which inputs might produce something valuable, you start with your dream skin and the calculator shows exactly which input combinations can reach it. This is how experienced traders find profitable trade ups that others miss.

CS2 Trade Up Tips for Maximum Profit

1.

Float values matter more than you think. A Factory New output can be worth 2-10x more than a Field-Tested version of the same skin. Always check what float range your inputs will produce and aim for condition breakpoints (0.07 for FN, 0.15 for MW) to maximize value.

2.

Use fillers strategically. Filler skins are cheap inputs from collections with no valuable outputs at the target rarity. By mixing expensive "target" skins with cheap fillers, you reduce total input cost while maintaining a chance at the high-value outcome. The trade-off is lower odds, so always check the EV.

3.

Look for collection overlap opportunities. Some collections share rarity tiers where one collection has a very expensive output and the other has cheap inputs. These overlaps create natural profitable trade ups that the community discovers and shares. Our calculator makes finding these combinations fast.

4.

Consider knife and glove trade ups. Trading up 10 Covert (red) skins from collections that include knives or gloves gives you a chance at the most valuable items in CS2. These knife trade ups are high-risk but can return enormous profit. Always calculate the exact odds and EV before attempting one.

Frequently Asked Questions

What is a CS2 trade up contract?
A trade up contract in CS2 lets you exchange 10 skins of the same rarity for one skin of the next higher rarity. For example, 10 Mil-Spec (blue) skins can be traded up for 1 Restricted (purple) skin. The output skin is randomly selected from all possible outcomes based on the collections your input skins belong to.
How is the output float value calculated?
The output float is calculated using this formula: Output Float = (Average Input Float x (Max - Min)) + Min, where Min and Max are the float range of the output skin. This means lower average input floats result in better condition outputs.
What is expected value (EV) in trade ups?
Expected Value (EV) is the average profit or loss you can expect from a trade up over many attempts. Positive EV means the trade up is profitable on average, while negative EV means you'll lose money over time. Our calculator shows EV for every trade up combination.
Can I trade up StatTrak™ skins?
Yes! StatTrak™ skins can be traded up, but all 10 inputs must be StatTrak™. The output will also be StatTrak™. You cannot mix StatTrak™ and non-StatTrak™ skins in the same trade up contract.
What is a reverse trade up?
A reverse trade up lets you pick your desired output skin first, then shows you which input combinations can achieve it. The calculator displays compatible inputs, float requirements, and success probability for your target skin.
How do I find profitable trade ups?
Use our calculator to find trade ups with positive expected value (EV). Look for combinations where expensive output skins have high probability, or where the average output value exceeds your input cost. The calculator shows profit potential for every combination.
Which price source should I use?
We recommend using Buff163 prices for the most accurate market values, as it's the largest CS2 skin marketplace. Steam prices include the 15% fee and may be less accurate for high-value items. You can switch between price sources in the calculator.
Can I save my trade up calculations?
Yes! Sign in with your Steam account to save unlimited trade ups for later. You can also share your trade ups with others using a unique link. Saved trade ups remember all your input selections and settings.
What is the best trade up in CS2 right now?
The best trade ups change constantly as skin prices fluctuate. Use our calculator to find current positive-EV trade ups by testing different collection combinations. Look for collections where the output tier has one very expensive skin and the inputs are relatively cheap. Our community trade up feed also highlights profitable combinations found by other users.
How do trade up fillers work in CS2?
Fillers are cheap input skins from collections with no valuable outputs at the next rarity tier. By using fillers alongside your target collection skins, you reduce the total input cost. The trade-off is that filler skins add low-value outcomes to the pool, reducing your odds of getting the expensive output. The key is finding the right balance where the EV remains positive despite lower odds.
What collections have the most profitable trade ups?
Collections with large price gaps between rarity tiers tend to produce profitable trade ups. Newer operation collections and cases often have valuable Classified and Covert skins with relatively cheap lower-tier inputs. The Kilowatt, Revolution, and Dreams & Nightmares collections have historically offered good opportunities. Use our calculator to check current prices since profitability shifts with the market.
How accurate is the CS2 trade up calculator?
Our calculator uses the exact same formula that CS2 uses internally for float calculations and outcome probabilities. The math is deterministic and fully accurate. The only variable is skin prices, which we pull live from multiple marketplaces (Steam, Buff163, and more). You can switch between price sources to cross-reference values and ensure accuracy.
How many skins do you need for a trade up in CS2?
You need exactly 10 skins of the same rarity to complete a CS2 trade up contract. All 10 skins must be the same quality tier — for example, all Mil-Spec (blue), all Restricted (purple), all Classified (pink), or all Covert (red). You cannot use Consumer Grade skins, Souvenir skins, or mix StatTrak™ and non-StatTrak™ items in the same contract.
Is the CS2 trade up calculator free to use?
Yes, CS2Locker's trade up calculator is completely free. No sign-up is required to calculate profit, odds, and float values. You can optionally create a free account to save and share trade ups, import your Steam inventory directly, and track results over time.

Pro Tips for Profitable Trade Ups

1.

Use low float inputs - Lower average input floats mean better output conditions, which are often worth more.

2.

Check collection overlap - Using skins from collections with expensive outputs increases your chances of profit.

3.

Calculate EV first - Never do a trade up without checking the expected value. Positive EV means profit over time.

4.

Use reverse lookup - Start with your target skin and work backwards to find the best input combinations.

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