How it worksHow Hong Kong scoring works
Hong Kong mahjong scores a winning hand in faan (番) — “doubles”. Your hand earns faan for the patterns it contains: a clean single suit, all triplets, dragon and wind pungs, how you won, and so on. Add them up to get the total faan.
The total faan converts to a payout using a doubling table scaled by your table's base stake (底). Win on a discard and the player who threw the tile pays; win by self-draw (自摸) and all three opponents pay, so a self-drawn hand is worth three times as much.
Most tables also set a limit (often around 10 faan) so a single hand can't pay out endlessly, and some require a minimum of 3 faan to declare a win. House rules differ — this calculator gives you a fast, fair baseline.
What is faan in mahjong? +
Faan (番) are scoring “doubles”. Each scoring pattern in your hand is worth a number of faan; the total decides the payout.
How many faan do you need to win? +
It depends on the house. Many Hong Kong tables require a minimum of 3 faan; some allow any winning hand. The calculator flags hands below 3.
Why is self-draw worth more? +
On a self-draw all three opponents pay the hand value, so you collect three times what a single discarder would pay — plus self-draw itself adds a faan.
Does this work for Riichi or American mahjong? +
No — this is built for Hong Kong faan scoring. Riichi uses han/fu and American uses the NMJL card; those need different calculators.
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