The Calculator is designed to answer one simple question: how do the two sides compare when every item is measured using the same value system?
Add the items you are giving on one side and the items you are receiving on the other. Use the exact item and variant. Fly, Ride, Neon and Mega Neon combinations can have their own values, so accuracy at this step matters more than any later interpretation.
Use the value selector to switch between Basic, Frost, Ride Potion and Realm Value. The items remain in place while TradeRealm recalculates both totals. This makes it easy to see whether the trade looks similar across several value perspectives.
The total on each side shows the selected value basis. The percentage difference shows how far apart the sides are. A small gap is usually more informative than simply seeing a green or red label because it tells you the size of the difference.
WIN means the side you receive is higher on the selected value basis. FAIR means the two sides are close within the comparison range. LOSE means you are giving more selected value than you receive. These labels describe the numbers, not another player's willingness to trade.
After the calculation, think about demand and availability. A mathematically fair trade can still feel uneven if one side is much easier to trade. Realm Value can add a TradeRealm activity perspective, while its confidence score tells you how strongly that signal is supported.
If the trade is important, switch between value systems and look for consistency. You do not need every system to produce identical totals, but a major disagreement is a reason to inspect the items instead of choosing whichever result looks best.
TradeRealm does not accept trades for you and does not transfer Adopt Me items. Use the Calculator to understand an offer, then make the final decision yourself in the official in-game trading system. Personal collecting goals can also justify a deliberate overpay as long as you understand the difference.