oftenoriginal

Gacha Pity Calculator for Pull Odds, Guarantee & Currency

Use this gacha pity calculator to estimate featured character or item odds from your current pity, planned pulls, guarantee state, soft pity, hard pity, and currency per pull. Core one-copy banner math is free - go Pro for custom banner rules, multi-copy goals, copy chance rows, and a copyable pity plan.

Copy goalPro

Free calculates one featured copy. Pro compares 2-7 copy goals and worst-case currency.

Custom banner rulesPro
Advanced pity planning Pro

Pro unlocks custom banner rules, 2-7 copy goals, copy chance rows, and a copyable currency plan.

Unlock with Pro
Chance for 1 copy
62.5%

Within 80 pulls for featured 5-star.

Pity state
pre-soft pity

50 pulls to hard pity

Next featured odds
0.30%

0.60% top-rarity odds on next pull

Planned currency
12,800 Primogems
Worst-case target
140 pulls

22,400 Primogems

Expected pulls result
At least one featured 5-star
62.5%
Expected 5-star pulls
1.29
Expected featured copies
0.71
Pro adds multi-copy chance rows for C1-C6, eidolons, mindscapes, resonance chains, and other duplicate systems.
Rule notes
  • If the next top-rarity pull misses featured, the following top-rarity pull is treated as guaranteed featured.
  • The next pull has a 0.60% base 5-star rate from zero pity.
  • Limited character banners use a 50/50 featured check unless your next 5-star is guaranteed.
  • Pity resets after any 5-star pull and the featured guarantee is consumed after a featured 5-star.

Free to use. Pro when you need more.

One oftenoriginal Pro membership unlocks the pro features on every tool.

Free

$0
  • Common major gacha banner presets
  • Current pity and planned pull inputs
  • 50/50 guarantee state toggle where the banner supports it
  • Soft pity, hard pity, and next-pull odds
  • One featured-copy probability and currency estimate
  • No sign-up required

oftenoriginal Pro

$9/month
  • Everything in Gacha Pity Probability Calculator, unlocked
  • Custom base rate, featured rate, soft pity, and hard pity rules
  • Two- to seven-copy target planning
  • Copy chance rows for duplicate systems
  • Worst-case currency for each copy goal
  • Copyable pity plan for your notes

Gacha Pity Probability Calculator — frequently asked questions

How does this gacha pity calculator work?+

It models each pull from your current pity state, applies the banner's base rate, soft-pity ramp, hard pity, featured check, and any carried guarantee, then sums the probability of getting the featured copy count you selected.

What is soft pity?+

Soft pity is the range near hard pity where many banners increase the top-rarity drop rate before the guaranteed hard-pity pull. The included presets use common published or player-facing rule assumptions, and Pro lets you edit them.

How does the 50/50 guarantee work?+

For banners with a carried featured guarantee, a non-featured top-rarity pull makes the next top-rarity pull guaranteed featured. If your account is already guaranteed, turn on the guarantee toggle before calculating.

Can it calculate copies like constellations, eidolons, or mindscapes?+

Yes. Free mode calculates one featured copy. Pro unlocks two- to seven-copy targets, per-copy chance rows, worst-case currency, and a copyable planning summary.

Is my pull history sent to a server?+

No. Pity, guarantee state, banner rules, pull odds, and currency estimates are calculated entirely in your browser.

More free tools from the oftenoriginal toolbox — no sign-up required.

Get new free tools monthly

We ship a new free tool nearly every day. Get the best of the month in one short email.

One email a month, only when new tools ship. Unsubscribe anytime.