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The Forge Calculator

Calculate crafting costs, RNG probabilities, and material requirements for The Forge Roblox.

Configuration

100%
Success Rate
0
Est. Attempts
0
Tier Jumps

Required Materials

Select an item to view costs.

How to use The Forge Calculator

  1. Select your Item

    Choose the weapon or armor piece you want to upgrade from the dropdown menu.

  2. Set Tiers

    Input your Current Tier (e.g., Common) and your Target Tier (e.g., Mythical).

  3. Apply Boosts

    Check boxes if you have VIP, gamepasses, or if a server Luck Event is active. This adjusts the probability math.

About The Forge Game Mechanics

In The Forge (Roblox), upgrading items relies on RNG (Random Number Generation). As you progress to higher tiers like Divine or Celestial, the success chance drops significantly.

This calculator uses Geometric Distribution to estimate the "Expected Cost". This means it calculates the average number of attempts a player needs to succeed based on the probability percentage.


Formula: Attempts = 1 / (Base Chance * Luck Multiplier)

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