EVE Reprocessing Calculator
An advanced tool to calculate your ore and item reprocessing yield in EVE Online.
Calculator
e.g., 50 for NPC station, 54 for T2 rigged Tatara in high-sec.
Bonus for player-owned Upwell structures.
Your level in the basic ‘Reprocessing’ skill.
Your level in ‘Reprocessing Efficiency’.
e.g., ‘Veldspar Processing’ or ‘Scrapmetal Processing’.
e.g., 4 for a Zainou ‘Beancounter’ RX-804.
Base Mineral Inputs (per 100 units of ore)
Results
Mineral Yield Comparison
Final Mineral Output
| Mineral | Base Amount | Final Yield |
|---|
What is an EVE Reprocessing Calculator?
An EVE Reprocessing Calculator is a crucial tool for any player in EVE Online involved in mining, manufacturing, or salvaging. Reprocessing is the process of breaking down items—like ore, modules, or ships—into their base mineral components. This calculator helps you determine the exact amount of minerals you will receive by factoring in all relevant variables.
This process is not 100% efficient; the final mineral yield depends on your character’s skills, the facility you use, and any specialized implants. Using an eve reprocessing calculator allows you to see if it’s more profitable to sell raw materials or to reprocess them first. It’s an essential part of any industrialist’s toolkit, from a new miner in high-sec to a null-sec manufacturing magnate.
EVE Reprocessing Formula and Explanation
The mineral yield in EVE Online is not a simple percentage. It’s a multiplicative formula involving several key factors. Understanding how they combine is key to maximizing your output. The core formula for ore/ice reprocessing in a player-owned Upwell structure is as follows:
Final Yield = Base Rate * System Bonus * (1 + Repro Skill * 0.03) * (1 + Repro Eff Skill * 0.02) * (1 + Specific Skill * 0.02) * (1 + Implant Bonus)
This formula shows that each bonus provides a multiplicative increase, making high levels in all skills and the right location critically important. For instance, the difference between reprocessing in high-sec versus a properly rigged structure in null-sec can be enormous.
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Base Rate | The base efficiency of the station or structure, including rigs. | Percent (%) | 30% – 54% |
| System Bonus | A multiplier for Upwell structures in lower security space. | Multiplier (x) | 1.0 (High-Sec) to 1.12 (Null-Sec) |
| Reprocessing Skill | The character’s level in the core ‘Reprocessing’ skill. | Level (0-5) | 0 to 5 |
| Reprocessing Efficiency | The character’s level in ‘Reprocessing Efficiency’. | Level (0-5) | 0 to 5 |
| Specific Material Skill | Skill for a specific ore type or for scrapmetal. | Level (0-5) | 0 to 5 |
| Implant Bonus | Percentage bonus from a ‘Beancounter’ implant. | Percent (%) | 0% – 4% |
For more advanced calculations, check out our EVE Industry Calculator.
Practical Examples
Example 1: High-Sec Veldspar Reprocessing
A pilot with decent skills (all level 4) reprocesses 100 units of Veldspar in a 50% base rate NPC station in high-sec. They have no implant.
- Inputs: Base Rate: 50%, System: High-Sec (1.0), Skills: All at IV, Implant: 0%. Veldspar yields 400 Tritanium per 100 units.
- Calculation: `50% * 1.0 * (1+4*0.03) * (1+4*0.02) * (1+4*0.02) = 50 * 1.12 * 1.08 * 1.08 = 65.32%`
- Results: The pilot gets `floor(400 * 0.6532) = 261` units of Tritanium.
Example 2: Max-Yield Null-Sec Moon Ore Reprocessing
An expert industrialist with perfect skills (all level 5) and a 4% implant reprocesses high-value moon ore in a T2-rigged Tatara (54% base) in null-sec.
- Inputs: Base Rate: 54%, System: Null-Sec (1.12), Skills: All at V, Implant: 4%.
- Calculation: `54% * 1.12 * (1+5*0.03) * (1+5*0.02) * (1+5*0.02) * (1+0.04) = 54 * 1.12 * 1.15 * 1.10 * 1.10 * 1.04 = 87.21%`
- Results: This represents a massive increase in mineral output, turning a good profit into a great one. This level of efficiency is why serious industrialists move to null-sec. For a detailed guide on ship setups, see our Ship Fitting Guide.
How to Use This EVE Reprocessing Calculator
Using this tool is straightforward. Follow these steps to get an accurate calculation of your potential mineral yield.
- Enter Structure & System Data: Input the base reprocessing rate of your station or structure. You can find this in-game. Select the security status of the system if you are in a player-owned structure.
- Input Your Skills: Select your character’s levels for the three main reprocessing skills.
- Add Implant Bonus: If you have a reprocessing implant, enter its percentage bonus (e.g., enter ‘4’ for a 4% implant).
- Input Base Minerals: Enter the mineral amounts for the item you wish to reprocess. For ore, this is typically given per 100 units. You can find this in the ‘Show Info’ window in-game on the reprocessing tab.
- Analyze the Results: The calculator will instantly show your total yield percentage and the final amount of each mineral you’ll receive. Use the chart and table to see where your gains and losses are.
Understanding Mining Profitability is key to success.
Key Factors That Affect EVE Reprocessing
Several critical factors can dramatically swing your reprocessing yield. Paying attention to each one is essential for maximizing your industrial output.
- Structure Choice & Location: A T2-rigged Tatara refinery in null-sec provides the highest possible base yield, far surpassing a standard NPC station in high-sec.
- Player Skills: The three core skills (Reprocessing, Reprocessing Efficiency, and the material-specific skill) multiply together. Neglecting even one will significantly lower your total yield.
- Implants: The Zainou ‘Beancounter’ implant series provides a direct percentage bonus, offering a valuable boost for serious industrialists.
- Structure Rigs: Player-owned structures can install rigs that increase the base reprocessing rate. T1 rigs provide a small boost, while T2 rigs provide a larger one.
- System Security: Upwell structures in low-sec, null-sec, and wormhole space receive a significant multiplier to their base yield, rewarding the risk taken.
- Faction/Corporation Standings: When using an NPC station, having high standings with the owner corporation reduces the tax, though it doesn’t increase the yield itself. For player structures, the owner sets the tax.
Learn more about EVE Online Market trends to make better decisions.
Frequently Asked Questions (FAQ)
- What is the maximum possible reprocessing yield?
- With perfect skills, a 4% implant, and reprocessing in a T2-rigged Tatara in null-sec or w-space, yields can exceed 90% for specific ores.
- How do I find the base yield of an item?
- In the EVE client, right-click the item, select ‘Show Info’, and go to the ‘Reprocessing’ tab. This will show the mineral content at 100% efficiency. Enter those values into the calculator.
- Does reprocessing modules and ships use the same formula?
- No. Reprocessing modules, ships, and other non-ore/ice items is only affected by the ‘Scrapmetal Processing’ skill. The other skills and implants have no effect. The maximum yield for scrapmetal is much lower.
- Is it always better to reprocess ore instead of selling it raw?
- Not always. It depends on your yield and the current market prices for ore versus minerals. If your yield is low, you might make more money selling the compressed ore directly to someone with better skills.
- What is compressed ore?
- Compressed ore is a dense version of raw ore that takes up much less cargo space, making it easier to transport. It can be reprocessed directly, typically in batches of 100.
- Why is my in-game yield different from the calculator?
- Double-check all your inputs. The most common errors are inputting the wrong structure base rate (did you account for rigs?), missing the system security bonus, or forgetting an implant.
- Where is the best place to reprocess materials?
- For the absolute best yield, a player-owned Tatara engineering complex with T2 reprocessing rigs located in null-sec or a wormhole is the ideal choice.
- Do faction standings matter?
- Faction standings can reduce the ISK tax you pay at an NPC station, increasing your net profit, but they do not increase the mineral yield percentage. For player structures, the owner sets the tax rate.