This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own 🔍 Find the Needle! session. It will not click the shop.
Material planner
Hay still needed for a coin upgrade
Estimate how much common hay you still need to sell for a coin upgrade, when the trough pays 1 coin per hay. Type the price and the coins you already have. The sample defaults are from one 5 September 2026 recording, not a live shop.
Required total = materials per upgrade × number of upgrades. Missing = max(required total − materials already owned, 0).
The installed form computes per-unit times count, minus owned. It matches hay you still need to sell only when each hay pays 1 coin: leave per unit at 1, put the coin price in count, and put coins you already hold in owned. The defaults 1, 188, and 100 are a 5 September 2026 sample (1 coin per common hay, one backpack tier priced at 188, and a 100 coin opening balance). Replace them with the trough and the workbench on your screen. Do not use this form for diamond or Robux prices, and do not use it if common hay pays any amount other than 1 coin.