Riichi Calc - Japanese Mahjong cover image
Riichi Calc - Japanese Mahjong icon

Riichi Calc - Japanese Mahjong

Takes any valid Japanese mahjong hand and calculates all winning combinations.

Richard L · ric.ov.RiichiCalc

0.0 100,000 100,000 v2.3.9 3.5 MB SDK 23+ PEGI-3 · Everyone

Riichi Calc - Japanese Mahjong screenshot 1 Riichi Calc - Japanese Mahjong screenshot 2 Riichi Calc - Japanese Mahjong screenshot 3 Riichi Calc - Japanese Mahjong screenshot 4 Riichi Calc - Japanese Mahjong screenshot 5
UpdatedMar 27, 2026
PublishedApr 1, 2025
Packageric.ov.RiichiCalc
MD565ce3cc35a4d295d1041d0bebc4f7b79
SHA1 (signer)20:7F:57:2A:EF:BC:20:26:42:87:D9:7D:79:8E:41:12:85:10:19:0A
Signed byCN=Richard Liu
Malware scanTRUSTED
Websitehttp://mahjong.onevis.net/
Contact[email protected]
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Description

Riichi Calc is an easy to use app that takes any valid Japanese mahjong hand and calculates all possible winning combinations. A great companion for any Japanese mahjong player! Feel free to e-mail me about any calculation errors.

Features:
 • Used for the Japanese variant of Mahjong
 • Order is irrelevant. The app will rearrange the tiles for you
 • Determine waits of a tenpai hand
 • Provides warnings against illegal combinations (e.g. riichi with an open hand)
 • Calculate points using han and fu as the input
 • Display terminology in English or romanized Japanese

Required features

Permissions (9)

Riichi Calc - Japanese Mahjong requests the following Android permissions:

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