Add up to 4 items on each side, just like the in-game window. See at once if you win, lose, or break even. Fair means both sides are within 5%.
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The in-game window shows items, not fairness. This tool totals the listed value of each side using the same headlines as our value list, then labels the gap. Within 5% is Fair. More than 5% in your favor is a Win. More than 5% against you is a Lose. The percent gap is shown so you can decide if a small miss is worth an add, or if you should walk away.
The game allows up to four items per side. The calculator matches that on purpose. You can share the page URL so a friend sees the same sides. If anyone swaps an item after you check, rebuild the trade before you accept.
A regular (physical) fruit is used up when you eat it. A permanent fruit stays in your inventory and is a different market, often worth many times more. Control is about 170M regular and 6B permanent. One missed toggle can flip Win to Lose. Mixing Regular and Permanent as if they were the same item is the most common way traders overpay. Ask "perm or physical?" out loud if the chat is unclear. Gamepasses have no Permanent toggle.
Someone wants your Control (170M regular, 10/10 demand) for Yeti (140M, 9/10) plus Gas (60M, 7/10). Add Control on your side as Regular. Add Yeti and Gas on theirs as Regular. Incoming total is 200M vs 170M, about an 18% Win. Demand is fine on all three. The only question left is whether you want two fruits instead of one liquid Control. Switch Control to Permanent and leave the other two Regular, and the same physical pair is not close. That is why the version toggle exists.
A Fair or Win result uses listed value only. An item with 2/10 or 3/10 demand can look even on paper and still sit in your inventory. Do not let a low-demand Legendary or a thin limited be the main value on your receive side unless you want to use it. Open the item page for source spreads, especially on event limiteds where sheets often disagree. Read more in demand vs value and how to use this calculator.
Skip a pure value call if you already agreed to a friend deal, if you want the fruit for PvP or grinding, or if the item page shows a huge source spread. The calculator is built for strangers in a trading server. For how headlines are compiled, see how we compile values.