Our mission and scope
We exist to turn scattered drop tables and anecdotal "rates" into clear, reproducible calculations. Our tools surface:
EV per action
Expected value calculations for every attempt
GPH analysis
Gold per hour and time cost per loop
Route tuning
Optimize cinders/hour, travel time, and efficiency
Probability models
Unique and rare drop chance calculations
→ What "reproducible" means
We show the inputs, formulae, and caveats so you can re-run the math on your own.
Player-first design
Our calculators are fast, shareable, and accessible.
Community feedback loop
We iterate with player reports and patch notes.
Release cadence
Expect season snapshots around major updates.
Methodology: from data to decisions
We model loot with independent rolls, union probability, and binomial distributions. EV per action is kept distinct from time; GPH multiplies EV by actions/hour.
→ Data sources and validation
In-game tooltips and API feeds
Journal logs and API data where available
Patch notes and official posts
Direct from game developers and official channels
Community-verified data
Sheets and sample logs with sanity checks
→ Assumptions and caveats
- •Rates can drift with balance patches and event rotations.
- •Route density and travel time materially impact chests/hour.
- •Market prices fluctuate; EV snapshots are not price guarantees.
Reproducible examples
Each calculator includes worked examples with round numbers (so you can re-do it on paper).
Change tracking
We stamp pages with Last updated and keep a short changelog.
Version compatibility
Tools document the patch/season they target and the expected refresh window.
Editorial standards & E-E-A-T
We separate facts, models, and opinion; we cite sources and show formulae.
→ Review and updates
Small fixes
As soon as we confirm accuracy
Seasonal refresh
Within days of headline patches
Deprecations
Banner if tool is out of date
→ Transparency & monetization
We use display ads (e.g., AdSense) and may include affiliate disclosures where applicable. Ads never gate features.
Open feedback
See /contact to submit logs, corrections, or ideas.
Accessibility
ARIA labels, keyboard navigation, and aria-live announcements are supported.
Internationalization
We write in English first; localized copies may follow.
Meet the project
LootCalc is built by a small team of designers, engineers, and statisticians who enjoy turning game systems into understandable models.
→ What we're building next
PoE currency models
Deeper Path of Exile calculations
More Diablo IV
Additional activity calculators
Shareable API
Player-shareable API links
→ How you can help
Share routes, upload anonymized logs, and tell us where math feels off.
Links and internal navigation
Glossary
See /glossary for definitions like EV, GPH, binomial, confidence interval.
Contact
Questions? See /contact.
Last updated: 2025-10-12