20 sided dice

A 20-sided dice is called an icosahedron. Here's what it is and how it's used

A 20-sided dice are used to roll between 1 and 20. They are mainly known for their use in tabletop games such as Dungeons & Dragons (D&D). These polyhedral dice add an element of chance and excitement to gameplay, allowing for a wide range of outcomes that can greatly influence a player's strategy and decisions. Each side of the 20-sided die, or d20, represents a different number, with players rolling to determine the success or failure of their actions, such as attacks, skill checks, or saving throws. In Dungeons & Dragons, the d20 is often at the heart of many mechanics. For example, when a character attempts to perform an action that requires a degree of skill or luck, they will roll the d20 and add any relevant modifiers from their character sheet. The result is then compared to a target number set by the Dungeon Master (DM) to determine if the action succeeds. Beyond D&D, the d20 has found its way into other role-playing games (RPGs) and even board games, where its versatility in generating random outcomes is appreciated. The distinctive shape of the die, with its 20 triangular faces, not only makes it visually appealing but also ensures that each roll is fair and unbiased. As gaming continues to evolve, the use of the d20 remains a staple, cherished by players for its ability to create memorable moments and unexpected twists in storytelling. Whether it's a heroic critical hit or a catastrophic failure, the roll of the d20 can turn the tide of the game in an instant, making every session a unique experience filled with adventure and suspense.

Probabilities of this Dice Roller

Probability of getting a 1 

The probability of getting a 1 on a d20 (20-sided die) is calculated by considering the total number of possible outcomes. Since a d20 has 20 faces, each face has an equal chance of landing face up when the die is rolled. This means that the probability of rolling a 1 on a d20 is 0.05 or 5%.  So if you're looking to try you .05% luck of rolling a specific number, just click on the Let's Roll! button to roll a 20 sided dice.