How Many Dots Are on a Set of Dominoes?

Pip totals and tile counts for every standard set.

A standard double-six domino set has 168 dots (pips) across 28 tiles. The number grows quickly for larger sets. Here's the full breakdown.

Pips and tiles by set size

Set	Tiles	Total pips	Highest tile
Double-six	28	168	6-6 (12)
Double-nine	55	495	9-9 (18)
Double-twelve	91	1,092	12-12 (24)
Double-fifteen	136	2,040	15-15 (30)

Why a double-six set has 28 tiles

A set contains every unique pairing of values from 0 (blank) to the maximum, including doubles. For a double-six set that's every combination of 0–6, which works out to 28 tiles. The pip total of 168 is simply the sum of all the dots across those tiles.

The math, if you're curious

For a double-n set, the number of tiles is (n+1)(n+2)/2 and the total pips is n(n+1)(n+2)/2. Plugging in n = 6 gives 28 tiles and 168 pips; n = 12 gives 91 tiles and 1,092 pips.

FAQ

How many dots on a double-six set?

168 pips across 28 tiles.

How many dots on a double-twelve set?

1,092 pips across 91 tiles — common for Mexican Train.