Gaming · Free tool

Loot Drop Probability Calculator

Probability of at least one rare drop in N attempts. Median, 95%-guaranteed, and mean attempts.

Updated April 2026

Drop rate %Attempts

≥1 drop in 50 tries

71.80%

50% chance (median)

27.4

attempts

95% chance (near-guaranteed)

118.3

attempts

Average (mean)

40.0

attempts

Assumes each attempt is independent. Median — you’ll have the drop by this many tries half the time. Mean — long-run average. 95% — bring patience if you haven’t seen it by then.

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What it does

0.5% drop rate? How many runs until 50% chance? Until 95%? The real probability math for farming, in four numbers.

Runs entirely in your browser — no upload, no account, no watermark. For more tools in this category see the full tools index.

Embed this tool on your siteShow snippet

Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.

<iframe src="https://freetoolarena.com/embed/loot-drop-probability" width="100%" height="720" frameborder="0" loading="lazy" title="Loot Drop Probability Calculator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>

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How to use it

Enter the drop rate %.
Enter attempts per session.
Read all four probability stats.