Stone0.20x
Unofficial Roblox fan tool
The Forge Calculator
Build a forge mix before spending ore. Compare weapon and armor craft bands, average multipliers, main material, and trait threshold signals from a single workbench.
3+ ores per craft 4 ore types max No login / local calculations
Rules refresh July 2026 planning review
Modes Weapon + armor
Best use Ore mix planning
Use at least 3 ores. Add up to 4 ore types in one forge mix.
Ore icons are fan-made visual cues, not official item art.
Sand Stone0.25x
Copper0.30x
Iron0.35x
Tin0.42x
Silver0.50x
Gold0.65x
Mushroomite0.80x
Platinum0.80x
Bananite0.85x
Cardboardite0.70x
Aite1.00x
Poopite1.20x
Fichillium0.00x
Cobalt1.00x
Titanium1.15x
Lapis Lazuli1.30x
Volcanic Rock1.55x
Quartz1.50x
Amethyst1.65x
Topaz1.75x
Diamond2.00x
Sapphire2.25x
Cuprite2.43x
Obsidian2.35x
Emerald2.55x
Ruby2.95x
Rivalite3.33x
Uranium3.00x
Mythril3.50x
Eye Ore4.00x
Fireite4.50x
Magmaite5.00x
Lightite4.60x
Demonite5.50x
Darkryte6.30x
Magenta Crystal Ore3.10x
Crimson Crystal Ore3.30x
Green Crystal Ore3.20x
Orange Crystal Ore3.00x
Blue Crystal Ore3.40x
Rainbow Crystal Ore5.25x
Arcane Crystal Ore7.50x
Galaxite11.50x
How the planner reads a craft
The calculator keeps the formula visible: selected ores become a weighted multiplier, the largest material share becomes the main material, and trait progress is shown against the public 10% and 30% thresholds.
Average multiplier
Each ore contributes its multiplier times quantity. The total is divided by all selected ores.
Craft band
Weapon and armor outputs are grouped into planning bands when exact probability splits are not shown.
Trait thresholds
Trait shares show whether a material identity is below 10%, active at 10%, near 30%, or active at 30%.
Planner pages
Use the focused pages when you want a narrower view of the same rules and ore table.
Weapon Calculator
Open the same calculator in weapon mode with short notes for craft-tier planning.
Plan weaponsArmor Calculator
Start in armor mode and watch material identity and trait thresholds while testing mixes.
Plan armorInventory Optimizer
Enter the ores you have and get a few browser-only craft suggestions with confidence labels.
Open optimizerOre Multipliers
Scan the ore table by rarity, area, multiplier, traits, and check status.
View oresMethodology
Read exactly how the calculator handles formulas, estimates, and update uncertainty.
Read methodology