A d4 is a four-sided die that gives 1, 2, 3 or 4 with equal chance, so one roll averages 2.5. Set how many dice to roll and any modifier: 3d4+3, for example, totals between 6 and 15 and averages 10.5. Each die result is listed under the total.
Four-sided dice are the pyramid-shaped ones that are easy to lose and painful to step on. Tabletop players reach for them for dagger damage, small healing spells and 3d4+3 missile volleys, and teachers use them for probability lessons with only four outcomes. This roller throws up to 100 virtual d4 at once, adds a positive or negative modifier, and lists every die alongside the total. It also shows the lowest and highest totals the roll can produce and the average you would see over many rolls. It does not reroll ones, drop the lowest die or handle mixed dice like 1d4+1d6; roll those parts separately.
Use the − and + buttons to choose how many d4 to roll, from 1 to 100.
Type a bonus such as 3 or a penalty such as -1; it is applied once to the whole roll.
The total sits at the top, with the notation, possible range, average and each die result below it.
Result Total: 3
Roll: 1d4
Lowest possible: 1
Highest possible: 4
Average total: 2.5
Dice showing 4: 0
A single four-sided die lands on 1, 2, 3 or 4 with equal chance, so the long-run average is 2.5.
Result Total: 10
Roll: 3d4+3
Lowest possible: 6
Highest possible: 15
Average total: 10.5
Dice showing 4: 0
Three d4 plus 3 always lands between 6 and 15 and averages 10.5.
Result Total: 3
Roll: 2d4-1
Lowest possible: 1
Highest possible: 7
Average total: 4
Dice showing 4: 0
Two d4 minus one ranges from 1 to 7 with an average of 4.
total = r₁ + r₂ + … + rₙ + m; average = 2.5 × n + m
rᵢnmEach die is drawn independently and uniformly from 1 to 4 using the browser's random source. A single d4 has mean (1+2+3+4)/4 = 2.5, so n dice average 2.5n. The lowest total is n + m (every die shows 1) and the highest is 4n + m (every die shows 4). Totals cluster near the average as more dice are added.
The four faces 1, 2, 3 and 4 are equally likely, so the mean is 10 ÷ 4 = 2.5. Two d4 average 5, three average 7.5, and so on.
Roll three four-sided dice, add their faces together, then add 3. The result runs from 6 to 15 and averages 10.5.
Most pyramid d4 show the result on the top point or along the bottom edge, depending on the design. Some crystal-shaped d4 roll like a long prism and read on the upward face.
Each face has a one-in-four chance on every die, and dice do not influence each other. Streaks of the same number happen with fair dice too; four 1s in a row has a 1 in 256 chance.
Yes. Enter a value like -2 and it is subtracted once from the dice sum. With few dice a large penalty can make the total zero or negative, and the page warns you when that is possible.
There are many more ways to make a middle total than an extreme one. With 10 d4, a total of 10 needs every die to show 1, while totals near 25 can be made thousands of ways.
Using this tool in an assignment, article or report? Copy a citation, or a link for your website.
Tools Directory Editorial Team. (2026, October 14). D4 Roller. Tools Directory. Retrieved October 28, 2026, from https://tools.milunir.com/fun-random/pickers-wheels-and-dice/d4-roller/
Tools Directory Editorial Team. “D4 Roller.” Tools Directory, 14 Oct. 2026, https://tools.milunir.com/fun-random/pickers-wheels-and-dice/d4-roller/. Accessed 28 Oct. 2026.
Tools Directory Editorial Team. “D4 Roller.” Tools Directory. Last modified October 14, 2026. Accessed October 28, 2026. https://tools.milunir.com/fun-random/pickers-wheels-and-dice/d4-roller/.
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