Mahjong Soul Summon Calculator

Summon with reason and a steady heart
Trust in fate, not in the purse.

Expected number of summons Number of distinct event Jyanshis already summoned

Target success probability (%) Number of distinct event Jyanshis already summoned Expected number of new event Jyanshis

Number of summons Number of event Jyanshis summoned (including duplicates)

Limited Pool: 1% chance to get the limited Jyanshi.

Expected number of summons

Target success probability (%)

Number of summons Number of limited Jyanshis summoned

Collaboration Pool: 2.95% chance to get any one of four collaboration Jyanshis.

Expected number of summons Number of distinct collaboration Jyanshis already summoned

Target success probability (%) Number of distinct collaboration Jyanshis already summoned Expected number of new collaboration Jyanshis

Number of summons Number of collaboration Jyanshis summoned (including duplicates)

Double Rate-Up Pool: 2.95% chance to get any one of two rate-up Jyanshis.

Expected number of summons Number of distinct rate-up Jyanshis already summoned

Target success probability (%) Number of distinct rate-up Jyanshis already summoned Expected number of new rate-up Jyanshis

Number of summons Number of rate-up Jyanshis summoned (including duplicates)

Single Rate-Up Pool: 2.95% chance to get the rate-up Jyanshi.

Expected number of summons

Target success probability (%)

Number of summons Number of rate-up Jyanshis summoned

Permanent Pool: 5% chance to get a Jyanshi.

Expected number of summons

Target success probability (%)

Number of summons Number of Jyanshis summoned (including duplicates)

Custom Pool: For example, 7.35% chance to get any one of four rate-up decorations. Put 7.35 in probability and 4 in pool size.

Probability (%) Pool Size

Expected number of draws Number of distinct prizes already pulled (Ignore if Pool Size is 1)

Target success probability (%) Number of distinct prizes already pulled (Ignore if Pool Size is 1) Expected number of new prizes (Ignore if Pool Size is 1)

Number of draws Number of prizes pulled (including duplicates)

This is an unofficial fan-made website for Mahjong Soul