The Demon Slayer Infinity Castle souvenir cups at AMC are reported to be around 25–27 dollars each , before tax, at most locations in late 2025.

Current reported price

  • An anime/movies news site notes that AMC commenters have confirmed a price of 24.99 dollars per cup , matching the price of the matching popcorn tin.
  • A popular Instagram post from a collector updates that they paid 26.99 dollars for a cup at their AMC, which likely reflects local pricing and tax differences.

So if you walk into an AMC for the Demon Slayer Infinity Castle event, you should expect to pay roughly 25–27 dollars per cup , plus tax, and some locations may limit how many you can buy per person.

Because these are limited collectibles, individual theaters can sell out quickly and may have slightly different pricing or purchase limits, so checking your specific AMC’s listings or calling ahead is wise.

TL;DR: The Demon Slayer cups at AMC are roughly 25–27 dollars each, plus tax, but exact price and availability can vary by theater and they sell out fast.

Information gathered from public forums or data available on the internet and portrayed here.