PoE Recombinator Calculator
Optimize your item outcomes for Path of Exile Settlers of Kalguur league
Success chance is based on pool selection probability and weighted mod survival.
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Probability Distribution Visualizer
Visual representation of Success (Green) vs. Failure (Red) based on current inputs.
What is the PoE Recombinator Calculator?
The poe recombinator calculator is a specialized utility designed for Path of Exile players to navigate the complex mechanics of item recombination introduced in the Sentinel league and updated for the Settlers of Kalguur league. Recombinators allow players to take two items of the same class and smash them together, potentially merging the best modifiers from both into a single, powerful endgame item.
Unlike standard crafting, the poe recombinator calculator helps you account for the “pool” logic. When you combine items, the game looks at the total number of prefixes and suffixes separately. It then determines how many of those mods will remain on the resulting item. Using a poe recombinator calculator is essential because it helps you realize when you are diluting your mod pool too much, which significantly lowers your chance of hitting a “GG” item.
PoE Recombinator Calculator Formula and Mathematical Explanation
The mathematics behind a poe recombinator calculator involves binomial distributions and weighted sampling without replacement. The game typically follows these steps:
- Calculate the total number of unique modifiers in the pool ($N$).
- Roll a random number to determine how many modifiers ($k$) the resulting item will have.
- Select $k$ modifiers from the pool $N$.
The “Expected Kept Mods” formula is roughly: $E = (ModsA + ModsB) / 2$, often rounded with a small chance to shift up or down. If a mod exists on both items, it effectively has two “tickets” in the lottery, significantly increasing its survival rate.
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Total Pool Size | Sum of unique mods from Item A and B | Count | 2 – 12 |
| Target Presence | Whether the mod is on one or both bases | Binary | 1 (Single) / 2 (Double) |
| Exclusive Count | Mods that block each other from appearing | Count | 0 – 2 |
| Success Rate | Probability of target mod appearing on result | Percentage | 33% – 95% |
Practical Examples (Real-World Use Cases)
Example 1: The High-End Ring. You have a ring with “T1 Life” and “T1 Flammability on Hit” (Item A). You combine it with a ring that only has “T1 Flammability on Hit” (Item B). By using the poe recombinator calculator, you see that because the Flammability mod is on both items, it has an 80% survival rate, while the Life mod (only on one) has roughly a 45% chance to transfer.
Example 2: Weapon Recombination. Combining a Merciless (+% Physical Damage) Bow with a Flaring (Flat Physical Damage) Bow. If each item has 3 prefixes, the poe recombinator calculator predicts a high probability of keeping at least 3 prefixes total, giving you a strong chance to retain both top-tier mods if no other “junk” prefixes interfere.
How to Use This PoE Recombinator Calculator
Following these steps will ensure you get the most accurate predictions from our poe recombinator calculator:
- Step 1: Count the total number of modifiers on your first item (Item A). Include both prefixes and suffixes.
- Step 2: Enter the mod count for Item B.
- Step 3: Toggle the “Target Mod Distribution”. If your desired mod is on both items, your success rate will jump significantly.
- Step 4: Check for exclusive mods. Certain mods like “Veiled” or specific “Incursion” modifiers cannot coexist; if you have these, the poe recombinator calculator will adjust the pool logic.
- Step 5: Review the success percentage and the visual chart to decide if the risk is worth the investment.
Key Factors That Affect PoE Recombinator Calculator Results
- Mod Weighting: Some rare mods may have internal weights that slightly alter the “random” selection process.
- Item Level: The resulting item’s level is a weighted average of the two inputs. This affects which mods can survive if the level drops too low.
- Exclusive Mod Groups: Mods from the same group (like different tiers of the same stat) are treated as one unique mod in the selection pool.
- Prefix/Suffix Balance: Recombinators process prefixes and suffixes independently. A high prefix count on one item doesn’t hurt your suffix transfer chances.
- Total Mod Count: Having “junk” mods on your items increases the pool size, which mathematically reduces the chance of your specific target mod being chosen.
- League Specific Rules: In the Settlers league, certain recombinator types (Armor vs Weapon) might have slight variations in the “random shift” modifier.
Frequently Asked Questions (FAQ)
No, mirrored items cannot be used in the recombinator process as they cannot be modified.
The resulting base is chosen 50/50 from the two inputs. The poe recombinator calculator focuses on mods, but base selection is a separate coin flip.
Yes, Essence mods are treated as regular mods in the pool and have a standard chance to survive.
The calculator assumes the resulting item level will meet the requirements of the mods. If you combine a level 10 and a level 80 item, some mods might be discarded if the resulting level is too low.
Generally, no. Most recombinators require uncorrupted items unless specifically stated otherwise in the league mechanic.
For specific mod transfer, fewer “junk” mods are always better. A poe recombinator calculator will show that success rates drop as the pool gets cluttered.
A safe slot is the minimum number of mods the game is guaranteed to pick for the resulting item based on the total input count.
Crafted mods can be transferred but they are often treated with lower priority or transformed into natural mods depending on the league version.
Related Tools and Internal Resources
- Path of Exile Crafting Guide – A comprehensive guide to all crafting methods including the poe recombinator calculator.
- PoE Item Affix List – Check the tiers and weights of all possible modifiers.
- Currency Farming Strategies – Learn how to afford the high costs of using a poe recombinator calculator.
- Settlers of Kalguur Mechanics – Deep dive into the latest league changes.
- Harvest Crafting Tool – Complement your recombination with targeted Harvest reforges.
- Fossil Crafting Tool – Use fossils to create the perfect bases for your next poe recombinator calculator project.