Number of Input Skins (count) Trade-up contracts require exactly 10 skins (fixed value)

Average Input Skin Price (USD) Enter the average price of each input skin in dollars

Possible Output Skins

Add each possible output skin with its market price and probability weight. Probabilities will be normalized if they do not sum to 100%.

+ Add Output Skin

Quick Examples:

Low-Tier Trade-Up High-Risk Trade-Up

Calculate Clear

This calculator is for informational purposes only. Market prices and probabilities may change based on game updates and market conditions. Verify current prices on trusted marketplaces before making trade-up decisions.

Use this free online CS:GO Trade-Up Contract Calculator to calculate your expected skin value and potential profit. Simply enter your input skin costs and possible output skins with probabilities to instantly get results in USD. The expected value represents the average outcome you would get from many trade-ups with the same parameters.

How Expected Output Skin Value Is Calculated

The expected value is calculated using a standard probability formula. Each possible output skin has a price and a chance of being received. The calculator multiplies each price by its probability, then adds all those values together. This gives you the average value you could expect if you did the same trade-up many times.

The probabilities are normalized before calculation, so they will always add up to 100% even if you enter different values. This ensures the expected value is mathematically valid.

What Your CS:GO Trade-Up Calculator Result Means

The expected value shows the average skin value you would receive over many trade-ups with the same inputs. If the expected value is higher than your total input cost, the trade-up has a positive expected profit on average. However, each individual trade-up is random, so you could receive a skin worth much more or much less than the expected value.

For example, if your expected value is $12.00 and your total input cost is $15.00, the trade-up has an expected loss of $3.00 per contract. This means over many attempts, you would likely lose money. If the expected value is $18.00 with the same $15.00 cost, you have an expected profit of $3.00 per contract.

Remember that expected value is an average. One trade-up could give you a rare expensive skin or a common cheap one. The actual result is always random.

Accuracy, Limitations & Common Mistakes of the CS:GO Trade-Up Calculator

How Accurate Is the CS:GO Trade-Up Calculator?

The calculator uses exact mathematical formulas for expected value, so the calculation itself is precise. However, the accuracy depends entirely on the prices and probabilities you enter. Market prices change constantly based on supply and demand. The probabilities come from game mechanics but may not account for all factors like float values or wear tiers.

Limitations of the CS:GO Trade-Up Calculator

The calculator does not account for float value variations, which can significantly affect skin prices. It assumes all probabilities are known and correct, but actual drop rates may vary. Market volatility means prices can change between when you check them and when you complete a trade-up. The tool also does not consider transaction fees from marketplaces or Steam market fees.

Common Mistakes to Avoid

• Using outdated prices: Always check current market prices before calculating, as skin values can change daily.
• Ignoring marketplace fees: Steam and third-party marketplaces charge fees that reduce your actual profit margin.
• Confusing probability with certainty: An expected profit does not guarantee profit on any single trade-up, only on average over many attempts.

Frequently Asked Questions

Who is this CS:GO Trade-Up Calculator for?

This calculator is for CS:GO and CS2 players who want to analyze trade-up contracts before committing their skins. It helps traders, collectors, and casual players understand the expected value of their trade-up decisions and compare different opportunities.

How often should I use this calculator?

Use the calculator whenever you are considering a trade-up contract. Since market prices change frequently, recalculate with updated prices before each trade-up to ensure your expected value estimate is current.

Does this calculator work for CS2 trade-ups too?

Yes, the calculation method is the same for both CS:GO and CS2 trade-up contracts. Both games use the same basic trade-up mechanics with 10 input skins and probability-based outputs. Enter the current prices and probabilities for your specific trade-up pool.

Can I use this calculator for rare special items like knives?

This calculator works for any trade-up contract where you know the possible outputs, their prices, and their probabilities. However, special items like knives often have very different drop rates and price ranges, so make sure your probability estimates are accurate for those cases.

Is the CS:GO Trade-Up Calculator free to use?

Yes, this calculator is completely free to use with no sign-up required. It works on any device with a web browser.