D10 Roller Online: Free D10 Dice Generator
Free, instant, and fair. Roll a d10 online with our full dice roller — no signup, no download.
10
Sides
1–10
Range
5.5
Average
Shaped as a pentagonal trapezohedron, the ten-sided die, or d10, is a cornerstone of tabletop gaming. Immediately recognizable, it serves a dual purpose thanks to its typical numbering schemes. Dice numbered 1-10 are straightforward, but those numbered 0-9 are uniquely versatile, acting as a standard d10 (with the '0' representing a '10') or pairing up for a percentile (d100) roll. This makes the d10 a tool for everything from calculating random encounters on a complex chart to determining the success of a specific character action.
In Dungeons & Dragons 5th Edition, the d10 represents a significant but controlled measure of power. It's the damage die for heavy weapons that require two hands, like the glaive or heavy crossbow, and the force behind some of the most iconic cantrips, including Eldritch Blast and Fire Bolt. It also serves as the Hit Die for resilient classes like the Fighter, Paladin, and Ranger, defining their ability to withstand punishment. For players in other systems, like the World of Darkness, the d10 isn't just one die among many, it's the core of the entire game mechanic.
How to Use This D10 Roller
To roll a single D10, simply click the large die. If your game requires a modifier, input the value into the 'Modifier' box. Press the 'Roll' button to see your result instantly. This tool works seamlessly on both desktop and mobile devices.
For more complex rolls, our main roller handles multiple dice (up to 20), advantage/disadvantage, and exploding dice. You can also press the spacebar to quickly roll, or create shared rooms for multiplayer sessions with friends.
When to Roll a d10
In D&D 5e, a martial character reaches for a d10 when they want to deal serious, reliable damage without relying on the wild swing of a d12. Weapons like the glaive, halberd, pike, and lance all deal 1d10 damage and often come with the powerful 'Reach' property, allowing you to strike foes from 10 feet away. The heavy crossbow, a favorite for stealthy characters and ranged specialists, also uses a 1d10 for its piercing bolts. When your Fighter Action Surges or your Paladin declares a Divine Smite, the d10 is often the die you'll be rolling to determine the impact of your decisive blow.
The d10 is just as crucial for spellcasters. A Warlock's identity is tied to Eldritch Blast, a cantrip that unleashes at least one beam of 1d10 force damage per turn. The Wizard's Fire Bolt is another staple, dealing a potent 1d10 fire damage that scales with level. Beyond damage, the d10 defines the very health of many front-line adventurers. Fighters, Paladins, and Rangers all roll a d10 for their Hit Dice, using it to recover hit points during a short rest and determining their total health pool at each level-up.
The d10's utility extends far beyond damage and health. When paired with a second d10, it becomes a percentile die (often called a d% or d100). By designating one die as the 'tens' digit and the other as the 'ones,' you can generate a number between 1 and 100. This is used for a vast array of effects, from the chaotic results of a *Confusion* spell to rolling on the magic item tables in the Dungeon Master's Guide. In games like *Vampire: The Masquerade*, players build pools of d10s to overcome challenges, making it the central engine of the entire Storyteller System.
The Math Behind the d10
A single d10 has what is called a 'flat' or 'uniform' probability distribution. This means every one of its ten faces, whether numbered 1-10 or 0-9, has an equal chance of landing face-up. The probability of rolling any specific number, be it a 1, a 7, or a 10, is exactly 1 in 10, or 10%. This pure randomness makes each roll exciting and unpredictable. The average result of a single d10 roll is 5.5, which you can calculate by summing all possible outcomes (1+2+...+10 = 55) and dividing by the number of faces (10).
This simple math changes dramatically when you roll multiple d10s. Rolling 2d10, for example, creates a triangular distribution. A result of 2 (by rolling two 1s) has only a 1% chance (1/10 * 1/10), as does a result of 20. However, a result of 11 is the most likely outcome, achievable through multiple combinations (1+10, 2+9, 3+8, etc.), giving it a much higher probability. This is why systems that use d10 pools feel more consistent than systems based on a single die roll.
When comparing weapon damage, the d10's average of 5.5 sits comfortably between other common dice. It's a clear step up from a longsword's 1d8 (average 4.5) but slightly less than a greataxe's 1d12 (average 6.5). However, it's more reliable than the d12, as the probability of rolling a 1 is lower (10% on a d10 vs. ~8.3% on a d12 is a misperception, the chance of rolling 1 is 10%). The real difference is variance: the d10 has less swing, providing more consistent damage numbers round after round.
Applying Modifiers to a d10
In D&D 5e, the d10 is primarily a 'result die,' most often used for calculating damage. When you hit with an attack, you add a static modifier to this damage. For example, a Paladin hitting with a longsword wielded in two hands rolls 1d10 and adds their Strength modifier to the total. This combination of a random roll and a consistent bonus creates a satisfying damage floor and ceiling. If you score a critical hit, the rules state that you roll the damage dice twice. So, a critical hit with that same longsword would be 2d10 + your Strength modifier, note that the modifier itself is not doubled.
It is a common point of confusion for new players, but game mechanics like Advantage and Disadvantage apply almost exclusively to d20 rolls (attack rolls, ability checks, and saving throws). You do not roll a d10 with advantage. The d10 roll for damage is a straightforward affair: roll the die, add your relevant modifier, and announce the total. This separation of mechanics keeps combat flowing and ensures that the d20 remains the primary driver of success or failure, while other dice like the d10 determine the magnitude of that outcome.
Frequently Asked Questions
Is a Greataxe (1d12) better than a Glaive (1d10)?
Mathematically, the greataxe's average damage is 6.5, while the glaive's is 5.5. This makes the greataxe slightly better for pure damage output. However, the glaive has the 'Reach' property, allowing you to attack enemies from 10 feet away. This tactical advantage is often far more valuable than one extra point of average damage, as it lets you control the battlefield and avoid opportunity attacks. The d10 roll is also slightly less 'swingy' than the d12, providing more consistent damage. The choice depends on whether you prioritize raw damage over tactical flexibility.
How do I read a d10 for a percentile (d%) roll?
For a percentile roll, you use two d10s, often of different colors. Before you roll, you must designate one die as the 'tens' digit and the other as the 'ones' digit. If you roll a '7' on the tens die and a '2' on the ones die, your result is 72. Most d10s are numbered 0-9. In this case, a '0' on the tens die represents the 0-9 range. For example, a tens roll of '0' and a ones roll of '5' is simply 5. The one special case is rolling two '0's, which is read as 100.
My d10 is numbered 0-9. How do I use it for a 1d10 damage roll?
This is a common and simple convention. When you need to roll for a result between 1 and 10, any number from 1 to 9 on your die is read as its face value. The '0' on the die is read as a '10'. This allows the same die to be used for both standard 1-10 rolls (like weapon damage or Fire Bolt) and as a component of a percentile roll (where the '0' represents zero). So, if your heavy crossbow hits and you roll a '0', you've dealt 10 piercing damage (before any modifiers).
Why does Eldritch Blast use 1d10 instead of scaling like Fire Bolt?
This design highlights a key difference between Warlocks and other casters. Fire Bolt scales by adding more dice to a single attack roll (becoming 2d10, then 3d10). Eldritch Blast, however, grants additional beams, each with its own separate 1d10 damage roll. This is a huge advantage for Warlocks. It means they can split damage between multiple targets. More importantly, it synergizes with the Agonizing Blast invocation, which lets them add their Charisma modifier to each individual beam's damage, leading to incredible and reliable output.
What's the probability of rolling max damage on a d10 versus a d8 or d12?
The probability of rolling the maximum value on any single fair die is 1 divided by the number of sides. For a d10, the chance of rolling a 10 is exactly 10%. For a d8, the chance of rolling an 8 is 12.5%. For a d12, the chance of rolling a 12 is about 8.3%. This shows a clear trade-off: larger dice offer a higher damage potential, but the probability of achieving that maximum roll decreases. The d10 sits in a sweet spot, offering substantial damage potential with a decent 10% chance of a max roll.
Ready to roll a D10?
Our main roller supports every standard die, modifiers, advantage, exploding dice, and shared rooms for online play.