1The rules the calculator uses
Value from the card × 2 for the thrower, × 2 for everyone on a self-pick, × 2 again if jokerless.
- Discard win: the thrower pays 2 × value, the other two pay 1 × value.
- Self-pick: all three players pay 2 × value.
- Jokerless: the value doubles first, except for Singles and Pairs hands.
- Wall game: nobody pays (no need for the calculator).
Full explanation with examples: Paying and Scoring in American Mahjong.
2House rules
If your group plays extra penalties or bonuses, add them after the calculator’s result.
Questions people ask
How much does the discarder pay in American mahjong?
The player who threw the winning tile pays double the hand value. The other two players pay the hand value once.
How much do you collect for a jokerless self-pick?
Twelve times the hand value: the value doubles for jokerless, and each of the three players pays double that. A 25¢ jokerless self-pick collects $3.00.
Are Singles and Pairs hands doubled for jokerless?
No. Singles and Pairs hands can never use jokers, so they are not doubled for being jokerless.