American Mahjong Score Calculator

Use this calculator to review a American Mahjong winning hand and its score. Enter the tiles and the relevant game conditions, then check the calculated result before using it in play or study.

How to use it

1. Build the winning hand.
2. Select the relevant conditions and scoring options.
3. Review the detected patterns and final score.

The calculator is designed as a practical reference. Always confirm any table-specific or tournament rules that may differ.