D4 Roller
Roll a d4, 2d4 or up to twenty four-sided dice at once, and see the exact odds for every total.
Free · runs in your browser · nothing is uploaded
Recent
Your last 10 settings, saved only in this browser. Nothing is uploaded.
This d4 roller is a free online dice roller for a 4-sided die. It rolls a d4 and gives you one number from 1 to 4, and every face has the same 1 in 4 chance (25%). You can roll up to 20 d4 at once, add or subtract a modifier, and roll with advantage or disadvantage. Every die is shown, so you can see which ones were kept, and a table under the result gives the exact odds for the roll you set. A seed or a copied link lets you repeat any roll. It works as a 2d4 roller too: set Number of d4 to 2.
It runs in your browser, so nothing you roll is uploaded. For other dice, use the dice roller or the other single-die pages linked below.
How to use the d4 roller
- Choose a Roll mode. Normal rolls the dice once. Advantage (keep higher) rolls the whole set twice and keeps the higher sum. Disadvantage (keep lower) keeps the lower sum.
- Set the Number of d4 with the stepper, from 1 to 20. One die gives a single roll; two dice give 2d4, and so on.
- Optional: set the Modifier, from −50 to +50, to add a bonus or a penalty to the total, such as the +3 of a damage roll.
- Press Roll again, or change any setting, and the dice roll. A single roll shows a large number with the die beside it. Several dice show every face; with advantage or disadvantage both sets are shown and the dropped one is dimmed.
- Read the Odds panel beside the result. It lists the average, the range, the most likely total and the chance of reaching a target you type in, with a bar for every total.
Recent rolls keeps your last ten results from this visit. Copy link saves your settings and seed in the page address, so a friend can open the same roll.
The stepper and the modifier work together, so a damage roll such as 2d4 + 3 is one setting. Change the numbers as often as you like: each change rolls again and the odds panel updates straight away.
How do you read a d4?
A d4 is a pyramid, so it has no top face to read. It lands on one face with a corner pointing up. On most d4s the number printed at that top corner is the same on all three visible faces, and that is your result. On other d4s the result is the number along the bottom edge of the face you can read. Check which style your die is once, then read it the same way every time.
What are the odds on a d4?
A single d4 averages 2.5, because each of 1, 2, 3 and 4 has a 25% chance. The table shows how the common ways to roll the die compare.
| Roll | Average | Range | Chance of rolling a 4 |
|---|---|---|---|
| 1d4 | 2.5 | 1 to 4 | 25% |
| 1d4 with advantage | 3.13 | 1 to 4 | 43.8% |
| 1d4 with disadvantage | 1.88 | 1 to 4 | 6.3% |
Advantage raises the average by 0.63 and disadvantage lowers it by 0.63. A roll of 3 or higher has a 50% chance on one die.
What happens when you roll 2d4?
Two dice no longer give every total the same chance. Totals near the middle can be made in more ways, so they come up more often. 2d4 averages 5, ranges from 2 to 8, and 5 is the most likely total at 25%.
| Total of 2d4 | Ways to roll it | Chance |
|---|---|---|
| 2 | 1 in 16 | 6.3% |
| 3 | 2 in 16 | 12.5% |
| 4 | 3 in 16 | 18.8% |
| 5 | 4 in 16 | 25% |
| 6 | 3 in 16 | 18.8% |
| 7 | 2 in 16 | 12.5% |
| 8 | 1 in 16 | 6.3% |
What rolls a d4 in the 5e SRD?
- Club, dagger, light hammer, sickle, dart, sling and whip all deal 1d4 damage in the SRD 5.2.1 weapon tables, and a dagger is a Finesse weapon that can also be thrown.
- Magic Missile sends three darts that each deal 1d4 + 1 Force damage.
- Healing Word restores 2d4 hit points plus your spellcasting ability modifier.
- Bless adds 1d4 to attack rolls and saving throws, Guidance adds 1d4 to an ability check, and Bane subtracts 1d4.
No SRD class uses a d4 as its Hit Point Die; the smallest is the d6 of the Sorcerer and Wizard. Use the damage calculator to turn these dice into an average damage per hit.
Rules facts on this page come from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.
How this tool works and where the numbers come from
Each die is drawn with a seeded random generator so every face from 1 to 4 has the same 1 in 4 chance. Advantage and disadvantage roll the whole set twice and keep the higher or lower sum. The odds are counted exactly by listing every way the dice can fall, not by simulation. Weapon and spell damage comes from the SRD 5.2.1 tables.
Sources
- Wizards of the Coast (2025). SRD 5.2.1, weapons, spells and class features. Licensed CC-BY-4.0 (SRD v5.2.1 (published 2025-05-01); page last updated 2026-03-02) · checked
- Wizards of the Coast (2025). SRD 5.2.1, PDF edition (SRD 5.2.1) · checked
Frequently asked questions
How do you roll a d4 online?
Open this page and the roller has already rolled one d4 for you. Press Roll again for another, or change the number of dice, add a modifier or switch to advantage first.
Is this d4 roller fair?
Yes. Each face from 1 to 4 has the same 1 in 4 chance on every roll, and a roll never depends on the roll before it. The seed only makes a session repeatable: a copied link plays back the same sequence of rolls.
What is the average of a d4?
A single d4 averages 2.5, because each of 1, 2, 3 and 4 has a 25% chance. With advantage it averages 3.13 and with disadvantage 1.88.
How do I roll with advantage or disadvantage?
Set Roll mode to Advantage (keep higher) or Disadvantage (keep lower). The roller rolls the whole set twice, shows both, and keeps the higher or lower sum. The note under the result names both sums and the one kept.
Which characters roll d4s?
Anyone who uses a light weapon such as a dagger, anyone casting Bless, Guidance or Healing Word, and anyone casting Magic Missile, which rolls 1d4 + 1 for each of its darts. Nobody rolls a d4 for hit points in the SRD classes.
Can I roll several d4 at once?
Yes. Set Number of d4 from 1 to 20. The result shows the sum with the modifier, the lowest and highest die, and the average per die.
Where can I roll other dice?
Use the dice roller for any mix of dice or notation such as 4d6kh3, and the single-die pages for the d6 roller, the d8 roller, the d10 roller, the d100 roller.
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