Old School RuneScape
- Barrows chest EV & unique drop rates
- GPH with KC, teleport & supply costs
- Cumulative probability curves
Loot Drop & Profit Calculators — EV, GPH & Route Math
Compare drop rates, expected value (EV), and gold per hour (GPH) across farming routes. Turn EV into time-normalized profit, reduce travel waste, and set rational expectations for variance and dry streaks.
OSRS Barrows
Calculate EV, unique drop rates, and GPH for Barrows chest runs
Open calculator →WoW Delves
Optimize vault tiers, bountiful coffer rewards, and time per tier
Open calculator →PoE Currency
Map returns, scarab cost-benefit, and currency profit per hour
Open calculator →D4 Helltide
Mystery chest EV, material costs, and cinders-to-loot efficiency
Open calculator →Why Choose LootCalc?
We're not just another loot calculator site. LootCalc is built by gamers, for gamers—with a commitment to accuracy, transparency, and genuine value.
Transparent Methodology
Every calculator on LootCalc shows exactly how we calculate expected value, gold per hour, and drop probabilities. We don't hide our formulas behind black boxes. Each tool includes a detailed methodology section explaining the math, data sources, and assumptions. When game mechanics change through patches, we update our calculators immediately and document what changed in our changelog.
Our formulas are peer-reviewed by community theorycrafters and cross-referenced with official game wikis, developer patch notes, and player-submitted loot logs. If you spot an error or have better data, we actively encourage feedback through our contact page and Discord community.
Community-Driven Development
LootCalc exists because real players needed better tools. Our team includes specialists with 10-20+ years of experience across OSRS, WoW, Path of Exile, Diablo, Destiny, and more. We're not corporate-owned or venture-backed—we're gamers who got tired of inaccurate, ad-bloated calculators that prioritize monetization over user experience.
Thousands of players contribute anonymized loot logs, bug reports, and optimization strategies through our feedback channels. Beta testers validate new calculators before launch. Our Discord and Reddit communities help identify patch-related changes within hours of official releases, ensuring our tools stay accurate even during major game updates.
Always Up-to-Date
Gaming economies and loot systems evolve constantly. A calculator that was accurate last season might be completely wrong today. That's why every LootCalc page displays clear "Last Updated" dates and version histories. We monitor official patch notes, developer blogs, and community discoveries to catch mechanical changes the same day they're announced.
Our changelog system ensures you never wonder "is this calculator still valid?" When WoW adjusts Delve vault thresholds, when Path of Exile rebalances currency drop rates, or when Diablo 4 tweaks Helltide cinder costs—our calculators reflect those changes within 24 hours. Check any calculator's metadata section to see exactly when it was last verified against current game data.
User Experience First
We've all visited those "calculator" sites that are actually disguised ad farms: thin content, auto-playing videos, interstitials blocking the tool, and outdated formulas copy-pasted from old Reddit threads. LootCalc takes the opposite approach. Calculators load instantly, work offline-capable, require no signup, and never gate functionality behind paywalls or email captures.
Yes, we run ethical ads to cover hosting costs—but they're clearly separated from content, never placed over interactive elements, and respect your consent choices. Our privacy policy is transparent about data collection (we don't sell your info). Most importantly, we invest ad revenue back into the site: better calculators, comprehensive guides, faster servers, and expanded game coverage. You're supporting a player-first resource, not padding corporate profit margins.
Join Thousands of Players Optimizing Their Farming
Whether you're a casual player checking if a farming route is worth your time, or a hardcore optimizer squeezing every percentage point of efficiency, LootCalc gives you the math-backed insights you need. No fluff, no misleading claims—just accurate probability calculations and honest expected value analysis.
Supported Games & Tools
One platform to compare EV, travel time penalties, and route density across OSRS, WoW Delves, Diablo 4 Helltide, Path of Exile mapping, Warframe Relic farming, Escape from Tarkov loot spawns, Borderlands 3 legendary drops, and more.
World of Warcraft
- Delves tier rewards & vault thresholds
- Bountiful coffer optimization
- Time-per-tier GPH comparisons
Diablo IV
- Mystery chest EV & material costs
- Cinders-to-loot efficiency
- Route density optimization
Path of Exile
- Map returns & scarab cost-benefit
- Currency profit per hour
- League mechanic efficiency
Warframe
- Radiant/Flawless/Exceptional/Intact odds
- Squad best-of-N selection boost
- Platinum EV per relic opened
Final Fantasy XIV
- Loot council, DKP, EPGP probability
- Dawntrail raid timeline planner
- Tomestone cap tracker & overflow alerts
Apex Legends
- Pack probability & seasonal boosts
- Heirloom tracker with loot ticks
- Battle pass refund & bundle planner
Raid Shadow Legends
- Ancient/Void/Sacred shard mercy tracking
- Custom pity logic & budget planner
- Drop probability & guarantee timelines
Lost Ark
- Honing success probability & artisan energy
- Expected materials & gold cost per level
- Solar Blessing optimization analysis
Destiny 2
- Raid exotic drop probability & BLP tracking
- Vex Mythoclast & Eyes of Tomorrow rates
- Weekly vs farmable mode optimization
Minecraft
- Chest loot probability & farming efficiency
- Desert temple, dungeon, fishing treasure rates
- Expected attempts & cumulative probability
Borderlands 3
- Legendary drop probability & Mayhem scaling
- Dedicated vs world drop farming efficiency
- Anointment hunting & expected kill calculations
Escape from Tarkov
- Loot spawn rates & container probability
- Boss spawn chances & key drop rates
- Labs loot efficiency & EV per raid
Elden Ring
- Drop rate scaling with Discovery stat
- Arcane build optimization & Silver Scarab
- Expected farming time for rare items
Featured Guides
Master loot farming with our comprehensive optimization guides covering EV calculations, GPH strategies, and profit maximization.
Beginner
Getting Started with LootCalc
Learn the fundamentals of EV, GPH, and drop rate optimization. Perfect for beginners.
Read Guide
OSRS
OSRS Barrows Complete Guide
Master Barrows farming with drop rates, EV calculations, and optimal routes.
Read Guide
WoW
WoW Delves Optimization
Optimize tier selection and vault thresholds for maximum efficiency.
Read Guide
PoE
PoE Currency Profit Guide
Maximize atlas strategies and scarab selection for peak profitability.
Read Guide
How Our Math Works: EV, GPH & Variance
LootCalc brings rigorous probability theory to loot optimization. We transform drop tables and probability distributions into actionable metrics, helping you maximize farming efficiency across multiple games.
Expected Value (EV)
Expected Value answers: "How much is this loot worth on average per attempt?" It's calculated by multiplying each possible drop's value by its probability, then summing everything together. For example, if a chest has a 10% chance to drop a 100,000 gold item and a 90% chance to drop 5,000 gold, the EV is (0.10 × 100,000) + (0.90 × 5,000) = 14,500 gold per chest. EV represents your long-term average—not every single run, but what to expect over hundreds of attempts.
Calculating Expected Returns
Our EV calculations account for weighted probabilities across all possible outcomes, including multiple loot tables, bonus rolls, and conditional drops triggered by specific game states.
Gold Per Hour (GPH)
Gold Per Hour factors in time investment and costs. If that 14,500 gold chest takes 10 minutes and costs 2,000 gold in supplies, your net profit is 12,500 per run, or 75,000 gold/hour (6 runs × 12,500). GPH lets you compare completely different activities—raiding vs delves, bossing vs gathering—on an apples-to-apples basis.
Time Efficiency Analysis
Time tracking includes travel, setup, combat duration, and downtime between runs. We factor in consumable costs, repair fees, and opportunity costs to show true profit per hour.
Variance & RNG
Variance measures how much results swing around EV. High-variance activities (like hunting a 1-in-512 rare drop) feel feast-or-famine: hundreds of runs dry, then multiple drops in quick succession. Low-variance activities smooth out the experience with many small consistent drops. Our calculators show cumulative probability curves so you see not just the average case, but the likelihood of hitting your target within a specific number of attempts.
Data Sources & Verification
Accurate calculations demand accurate data. We source from authoritative channels and cross-reference multiple sources:
MMORPG Data Collection
- OSRS: Official OSRS Wiki drop tables & Grand Exchange prices
- World of Warcraft: Blizzard blue posts, patch notes, season documentation & vetted theorycrafting
Wiki Cross-Referencing
We cross-verify OSRS drop rates against crowdsourced loot logs and WoW data against multiple theorycrafting communities before updating calculators.
ARPG & Gacha Systems
- Diablo 4: Official game data files, patch notes & community testing (Maxroll, etc.)
- Path of Exile: Official GGG statements combined with poe.ninja data & bulk trade analysis
- Genshin Impact: Official miHoYo probability rates with community pity verification
Patch Monitoring
We monitor official patch notes and developer statements within hours of release, updating affected calculators the same day mechanical changes go live.
Mathematical Models & Transparency
Our models use binomial distributions for independent events and union probability for mutually exclusive outcomes. Every calculator includes adjustable parameters—customize market prices, clear times, and costs to match your server and playstyle. Configuration URLs are shareable for comparing setups with friends or linking in guides.
Read our methodology: Drop Math: EV, Union Probability & Binomial and Drop Rate Math: EV vs GPH vs Variance.
LootCalc is a fan-made project not affiliated with or endorsed by Jagex, Blizzard Entertainment, Grinding Gear Games, miHoYo, or any game developer. All game content and trademarks are property of their respective owners. See our fan-made disclaimer.
Calculator Features
Every calculator includes powerful features to help you optimize farming routes, set realistic expectations, and maximize profit.
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Shareable Configuration URLs
Every calculation generates a unique URL. Bookmark your setup, share with friends, or link in guides and discussions.
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Custom Market Prices
Override default prices to match your server or realm. Prices update with Grand Exchange and auction house data.
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Cumulative Probability Charts
Visualize your odds of hitting a drop within N attempts. Set realistic goals and understand dry streak likelihood.
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Cost Tracking & Net Profit
Factor in teleports, consumables, repairs, and travel time. See true profit after all expenses.
Recent Updates & Guides
View all →Genshin Impact Wish Pity System Guide 2025
New GuideMaster Genshin's wish pity system with comprehensive analysis of soft pity mechanics, 5-star probability curves, 50/50 guarantee system, and primogem optimization for F2P and whales.
Warframe Relic Farming & Refinement Guide 2025
New GuideOptimize Warframe relic farming with comprehensive refinement tier analysis, best-of-squad mechanics, void trace efficiency, and platinum per hour strategies.
Minecraft Loot Table & Chest Farming Guide 2025
New GuideMaster Minecraft loot farming with loot table analysis, chest probability calculations, fishing optimization, and enchantment efficiency strategies for diamonds and rare items.
Borderlands 3 Legendary Farming Guide 2025
New GuideOptimize Borderlands 3 legendary farming with Mayhem 10/11 scaling analysis, dedicated drop sources, anointment probability, and boss route efficiency for max loot.
Escape from Tarkov Loot Optimization Guide 2025
New GuideMaster EFT loot farming with spawn rate analysis, boss farming strategies, map-specific routes, and risk-adjusted expected value calculations for profitable raids.
Elden Ring Drop Rate & Discovery Guide 2025
New GuideOptimize Elden Ring item farming with Discovery stat scaling, Arcane build optimization, rare weapon drop rates like Magma Blade, and farming route efficiency.
Drop Math: EV, Union Probability & Binomial
GuideDeep dive into the probability theory behind our calculators. Learn how we combine binomial distributions and union probability to calculate accurate drop rates across multiple attempts and loot sources.
Drop Rate Math: EV vs GPH vs Variance
GuideUnderstand the three core metrics: Expected Value for long-term averages, GPH for time-normalized profit, and Variance for setting realistic expectations about dry streaks and lucky runs.
WoW Delves Tiers, Vault Thresholds & GPH
GuideComplete guide to optimizing WoW Delves farming. Covers tier rewards, bountiful coffer thresholds, vault unlocks, and time-per-tier GPH calculations for The War Within Season 1.
OSRS Barrows EV, Unique Odds & GPH
GuideComprehensive analysis of Barrows chest mechanics. Calculate EV from brother-specific uniques, understand KC thresholds, factor in teleport and supply costs, and maximize your GPH.
Loot Calculator Optimization Guide 2025
GuideMaster advanced strategies for optimizing farming routes across multiple games. Learn how to balance EV, GPH, and variance to maximize long-term profit and minimize wasted time.
Frequently Asked Questions
LootCalc uses the most up-to-date drop rate data and market values to provide highly accurate calculations. However, please note that actual results may vary due to in-game randomness.