1. Unofficial fan project: no affiliation with Blooket
blooketcalc.us is a fan-made site built and maintained by Blook Enthusiast, based in Austin, Texas. It is not affiliated with, endorsed by, or operated by Blooket, Play Blooket, LLC, or any of their subsidiaries or partners. All Blooket-related marks, pack artwork, and Blook names remain the intellectual property of their respective owners.
2. Drop rates are community-sourced
Blooket does not publish an official drop-rate API. The numbers used by every calculator on this site come from the Blooket Wiki on Fandom and corroborated by community audit threads. We verify against in-game testing and update after Blooket patches that touch the pack economy, but small deviations between this site and current in-game rates are possible at any time.
If you notice a mismatch, please contact us or email hello@blooketcalc.us. Corrections are applied and shipped the same week.
3. Calculators model probability, not guarantees
Pack opening in Blooket is an independent-trial probability system. Each pack is a fresh dice roll; prior pulls do not affect future odds. There is no pity timer. The calculators on this site compute cumulative probability, the chance that at least one of your planned openings produces the target, not a guarantee that you will pull it. For a full walkthrough, see How Drop Rates Work and The 50/90 Rule.
4. Not gambling, not financial advice
Blooket tokens are an in-game currency with no real-world monetary value. Pack openings in Blooket are not gambling, and this site does not model any form of wagering. Nothing on blooketcalc.us constitutes financial, investment, educational, or psychological advice. If a child in your care is developing concerning patterns around in-game pulls, please step back from the platform and speak with a qualified professional.
5. Analytics disclosure
This site uses Google Analytics (GA4) to collect anonymised aggregate traffic data: pages viewed, session counts, approximate geography. No personal information is collected by the site itself. GA4 loads after the initial page render and is governed by Google's privacy policy. The site does not use any other third-party tracking scripts.
6. The site can be wrong
Specific kinds of errors to watch for:
- Rate lag.A Blooket patch changes a pack's rates and our data has not yet caught up.
- Missing Blooks. A newly-released chase Blook is not yet in the catalog. The calculator still runs but the new Blook will not appear.
- Rounding differences. Our math rounds at several steps; the last digit of an output may differ from an in-game display.
- Typos. Guides are written by one person. Please flag any you see.
7. Educational use
Teachers are welcome to link to this site from classroom materials to illustrate probability concepts. Pack-opening math is a practical example of geometric distributions and independent trials. If you adapt this material for a lesson, a link back is appreciated but not required.
8. Accessibility
We follow standard web-accessibility practices: semantic HTML, sufficient color contrast, keyboard-navigable interfaces, and plain-language writing. If you encounter an accessibility issue, let us know and we will fix it promptly.
9. Contact
Questions, corrections, or takedown requests: hello@blooketcalc.us. See the contact page for all options.