Which totals are most likely with two dice?

Seven. Two six-sided dice have 36 equally likely combinations, and 6 of them add up to 7, so a 7 comes up one time in six. A 6 or an 8 has 5 combinations each, and 2 and 12 have only one each, one chance in 36. The dice probability explorer on this site lists every total exactly.

Does it show when I roll doubles?

Yes. When both dice show the same face, the word doubles appears next to the sum and the status line reads Doubles. It reports the dice only: game rules built on doubles, such as an extra turn or going to jail after three in a row, are left to you and the rule book.

Can I use it for Monopoly, Catan or other board games?

Yes, for any game played with two standard six-sided dice, including Monopoly, Catan and backgammon. The total is the sum of both dice. Dice with symbols, letters or colours, such as an event die, are not on the tray; tap d6 again for a third die, or pick any other die.

Can I use it in a classroom?

Yes. It runs in any current browser on a classroom computer, tablet or interactive whiteboard, with no sign-in. For a probability lesson, roll a few dozen times and compare the log with the expected shape: totals near 7 should turn up far more often than 2 or 12.

Two Dice Roller

This page opens on a pair of six-sided dice, the 2d6 roll most board games use. Press Roll, the space bar or R: both faces are drawn with their dots, the total from 2 to 12 is shown underneath, and two matching faces are called out as doubles. The last 50 rolls stay in a log you can copy. There is nothing to download and no account, so it works on a phone, a laptop or a classroom screen when the real dice go missing.

2d6Press Roll, the space bar or R.

Dice

Modifier

d20

Drop lowest

Tap a die to add it to the roll, then press Roll, the space bar or R.

Every die is shown, not just the total. Each face is drawn as it came up, a six-sided die with its dots, and the total sits underneath.

Common questions

Which totals are most likely with two dice?: Seven. Two six-sided dice have 36 equally likely combinations, and 6 of them add up to 7, so a 7 comes up one time in six. A 6 or an 8 has 5 combinations each, and 2 and 12 have only one each, one chance in 36. The dice probability explorer on this site lists every total exactly.
Does it show when I roll doubles?: Yes. When both dice show the same face, the word doubles appears next to the sum and the status line reads Doubles. It reports the dice only: game rules built on doubles, such as an extra turn or going to jail after three in a row, are left to you and the rule book.
Can I use it for Monopoly, Catan or other board games?: Yes, for any game played with two standard six-sided dice, including Monopoly, Catan and backgammon. The total is the sum of both dice. Dice with symbols, letters or colours, such as an event die, are not on the tray; tap d6 again for a third die, or pick any other die.
Can I use it in a classroom?: Yes. It runs in any current browser on a classroom computer, tablet or interactive whiteboard, with no sign-in. For a probability lesson, roll a few dozen times and compare the log with the expected shape: totals near 7 should turn up far more often than 2 or 12.

Every face is equally likely: values come from the browser's cryptographic generator with rejection sampling, so a d6 is exactly one in six on each face. The log is kept in this browser only.