Sine ToolsSuggest a recipe ↗Windrose smelting calculator
Windrose smelting calculator for copper and Foothills iron ingots. Calculate ore and charcoal, subtract inventory, and copy your gathering checklist.
How many ingots do you need?
Set copper and Foothills iron ingot quantities. Charcoal is shared across both smelting jobs.
Inventory max uses what you entered below, including finished items. It reserves materials for your other selected items. With station costs enabled, it also reserves their materials.
What do you already have?
Enter ore, charcoal and ingots already owned. Enter a furnace if you enable its building cost.
Add items from your inventory
Stone
Clay
Copper Ore
Foothills Iron Ore
Charcoal
Smelting FurnaceYour gathering checklist
Choose an item to calculate
Set a quantity above.
Required materials will appear here.
Recipe costs checked against Windrose DB, snapshot July 7, 2026 (v0.10.0.8.10-dd411cfd). Source checked October 18, 2026; recipes haven’t been verified against the current game build. Please report any changes below.
Recipe corrections and requests
Report a recipe correction, request an item, or tell us about a bug.
How much ore and charcoal does Windrose smelting use?
One Copper Ingot uses 4 Copper Ore and 1 Charcoal. One Foothills Iron Ingot uses 3 Foothills Iron Ore and 1 Charcoal. Both are crafted in a Smelting Furnace. Enter the total ingots you want; ingots already owned reduce the amount you need to smelt.
Copper and iron smelting example
With no materials owned, 20 Copper Ingots and 10 Foothills Iron Ingots need 80 Copper Ore, 30 Foothills Iron Ore and 30 Charcoal. The inventory maximum reserves fuel for the other ingot type you selected.
Does this include the furnace and charcoal production?
Enable missing station costs to add a Smelting Furnace: 15 Clay and 30 Stone. Enter an existing furnace to remove that cost. Charcoal is treated as a fuel item; the calculator does not convert wood into charcoal or estimate smelting time. It models the ordinary furnace, not automatic substitution of a Large Smelting Furnace.