ForgeCalc – The Forge CalculatorRoblox Forging Probability Tool
Calculate forging probabilities, optimize ore combinations, and predict weapon & armor stats for The Forge Roblox. Stop wasting rare ores – plan your crafts with real game data.
Forge Calculator
Select ores, adjust quantities, and see real-time forging probabilities
Ores Directory
All 88 ores with stats & locations
Browse complete ore data including multipliers, rarity, traits, and drop locations for World 1, World 2, and World 3.
Weapons & Armor
42 weapons, 21 armor pieces
Explore all weapon categories (Dagger, Katana, Great Sword, Colossal) and armor classes with DPS rankings.
Best Forge Setups
Community-tested recipes for different playstyles
Beginner Setups
Low-cost recipes using common ores for early game progression. Perfect for World 1-2.
- • Iron + Gold (12 ores) → Katana
- • Silver + Platinum (15 ores) → Straight Sword
- • Diamond + Ruby (20 ores) → Great Sword
DPS Meta Builds
Maximum damage output builds using trait synergies. For experienced players.
- • Eye Ore + Mythril + Lightite → Katana
- • Darkryte + Arcane + Demonite → Colossal
- • Iceite + Gargantuan → Heavy Weapon
Tank Armor Builds
Maximum defense and survivability. Essential for The Peak boss fights.
- • Obsidian + Mythril (35 ores) → Heavy Armor
- • Darkryte + Magmaite → Defense + Burn
- • Sanctis + Velchire → Holy Tank
How to Use ForgeCalc
Get accurate forging predictions in 5 simple steps
Select World
Choose W1/W2 or W3 to filter available ores
Choose Mode
Switch between Weapon or Armor forging
Add Ores
Click ores and adjust quantities (3-51 for weapons)
Check Traits
Ensure key ores reach 30% for max trait power
Analyze & Share
Review probabilities and share your setup
Frequently Asked Questions
Everything you need to know about The Forge Calculator
What is The Forge Calculator?
The Forge Calculator is a free online tool that calculates forging probabilities, predicts weapon and armor stats, and helps optimize ore combinations for the Roblox game The Forge.
How accurate is this calculator?
We use real probability tables extracted from game data. Our calculations are verified with 50+ unit tests and match in-game results with 99%+ accuracy.
How many ores does ForgeCalc support?
ForgeCalc supports all 88 ores from The Forge, including World 1, World 2, and World 3 (The Peak) ores. We update within 24 hours of new game patches.
How do trait activations work?
Traits activate when an ore type reaches 10% of your total composition. At 30% or higher, the trait reaches 100% effectiveness. Between 10-30%, effectiveness scales linearly.
Can I share my forge setup?
Yes! Every ore combination generates a unique URL that you can share with friends or save for later. Just copy the URL from your browser.
Is this an official Roblox tool?
No, ForgeCalc is a fan-made community tool. We are not affiliated with Roblox Corporation or The Forge game developers.
What's the difference between weapon and armor forging?
Weapons use 3-51 ores and produce different weapon categories (Dagger, Katana, Great Sword, etc.). Armor uses 3-45 ores and produces Light, Medium, or Heavy armor.
How do I report incorrect data?
If you find any calculation errors or outdated data, please report it through our feedback form. We typically fix issues within 24 hours.
Changelog
Recent updates and data changes
- • Added all 88 ores with complete data
- • Implemented 50+ unit tests for calculation accuracy
- • Added World 1/2 vs World 3 ore filtering
- • URL sharing for forge setups
- • Added Frostspire Expanse ores
- • Fixed trait activation threshold calculation
- • Mobile UI improvements
- • Initial release with core calculator
- • 42 weapons, 21 armor pieces
- • Basic probability tables
Ready to Forge the Ultimate Gear?
Join thousands of players using ForgeCalc to optimize their crafting. No signup required – start calculating now.