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MapleStory: Idle RPGKR

Idle RPG Weapon Summoning Chance Calculator

Verified against MapleStory Idle RPG Wiki
Idle RPG Weapon Summoning Chance Calculator

Interactive tool on MPStorys

Idle RPG Weapon Summoning Chance Calculator probability planner

Use the verified in-game rate for your region, then calculate cumulative outcomes without leaving MPStorys.

Chance of at least one success

63.4%

Expected successes

1

Planned total cost

0

Attempts for 90% chance

230

Attempts needed for at least one success: 50% — 69, 90% — 230, 95% — 299.

Uses independent-attempt probability: 1 − (1 − p)ⁿ. Enter the current official rate; MPStorys does not guess or freeze game rates.

How this on-site tool works

Calculates weapon-tier acquisition probability by summon level and rolls, plus ticket counts for target confidence levels.

Verified resource information

What this official resource covers

  • Calculator: Weapon Summoning Chance is maintained by MapleStory Idle RPG Wiki.
  • MPStorys indexes it as calculator content for global.
  • Verified topics: probability, summoning, tickets, weapons.

Availability

  • Published languages: en.
  • Mobile support: responsive.
  • The indexed page is publicly readable without signing in.

Verification record

  • Source status: active; last checked 2026-07-25.
  • Verified source: https://idle.maplestorywiki.net/w/Calculator%3AWeapon_Summoning_Chance

More from this series

This Tools entry belongs to MapleStory: Idle RPG. Related pages below keep this series separate from other MapleStory games.

Source and verification

MPStorys keeps an original summary and structured facts on this site. The first-party page remains attached as a citation for dates, rules, and later corrections.

MapleStory Idle RPG Wiki