EVE Reprocessing Calculator
Estimate mineral output, effective yield, and rough ISK value from ore reprocessing.
Note: This is a planning tool that uses a simplified yield model and sample mineral prices. Always verify against live in-game numbers and current market data.
Why use a reprocessing calculator in EVE?
A good reprocessing calculator eve workflow helps you decide whether it is better to sell raw ore, compress it, haul it, or refine it into minerals first. In EVE Online, tiny differences in yield and taxes can swing your margins dramatically, especially if you are running high-volume mining operations or industry chains.
The calculator above gives you a fast estimate of your effective yield, net minerals after tax, and approximate ISK value. You can tweak your skill levels, facility quality, and tax rate to compare scenarios before undocking.
How this calculator models reprocessing
Core assumptions
This tool uses a practical approximation:
Effective Yield % = Facility Yield × Skill Multipliers × Implant Bonus × Structure Bonus
- Reprocessing skill adds 3% per level.
- Reprocessing Efficiency adds 2% per level.
- Ore Processing adds 2% per level.
- Implant and structure bonuses are applied as additional multipliers.
- Tax is removed at the end to estimate what you keep.
Because CCP periodically updates mechanics, facilities, and balance values, think of this as a strong estimate rather than a perfect server-side simulation.
How to improve your refining profit
1) Train the right skills first
If you refine frequently, skill training is often the highest ROI upgrade. Prioritize:
- Reprocessing to IV or V
- Reprocessing Efficiency to IV or V
- Specific ore processing skills used by your corp doctrine
2) Use better structures and rigs
Structure choice matters. Refining in a properly rigged player structure often outperforms many basic stations. The difference can be huge over millions of ore units.
3) Reduce tax and hidden logistics costs
A low visible tax does not always mean the best route. Add hauling losses, vulnerability to ganks, travel time, and buy/sell spread to your true cost model.
Quick practical example
Suppose you mined 100,000 units of Scordite. If you process in a mediocre setup at high tax, you may lose enough minerals that raw ore sales beat refining. But with better skills, a structure bonus, and lower tax, your mineral output can become significantly more valuable than unrefined ore.
This is exactly why industrial pilots run scenario checks before moving inventory. The best decision is often contextual: your skills, your structure access, and local market spreads define profitability.
Common mistakes pilots make
- Ignoring tax and assuming “higher yield always wins.”
- Using stale mineral prices from last week’s market peak.
- Refining in a convenient station instead of a better structure.
- Forgetting to compare refined value versus compressed ore sale value.
- Not separating “wallet profit” from “time-adjusted profit.”
Final thoughts
Reprocessing is one of those systems where optimization compounds. A few percent here and there may feel minor, but at alliance or corporation scale, it becomes massive. Use the calculator regularly, update assumptions with live market data, and keep refining decisions tied to your broader industrial pipeline.