Rarity calculator
Other versions
An independent-try chance for a published drop rate and an attempt count, with the arithmetic left on the page.
The drop-rate experiment lives at https://rarity-calculator.xms.mom. It turns a published percentage and a number of tries into the chance of seeing that result at least once, assuming each try is independent. Pity counters and shrinking bags are out of scope there. This parent host does not calculate a rate.
What the formula is willing to say
Only the complement of missing every try. If a game removes the prize from the pool or adds pity, that site tells you to treat the number as a baseline, not as a schedule.
Where the presets live
Short sessions, one-percent examples, and the notes on expected waits are pages of that deployment. Follow the subdomain rather than looking for those presets here.
Questions
Can I run the arithmetic on this host?
No. The calculator is the subdomain. This page exists so the parent domain has a public link to it, not a second copy of the form.
Related pages
- Notion AI credits
A personal-allowance estimate for Notion Standard and Select AI credits, from tasks per day and the model in use.
- What this domain is
The parent host is a short public index, not a login wall and not a duplicate of the tools it points at.
- DeepSeek peak hours
A clock for the DeepSeek API half-price windows, including the Beijing weekday rule and a token-price table.
- When to open peak hours
Open the peak-hours host for a live half-price reading. This note only says when that host is the right tab.