Custom Dice Roller - Dice Notation Calculator
Roll any dice formula using standard notation. Type expressions like 2d6+5, 4d6kh3 (keep highest 3), or complex multi-dice formulas. Instant results with a breakdown of each die.
Dice Notation Guide
NdX — Roll N dice with X sides (e.g. 2d6 = two six-sided dice). +/- — Add or subtract a modifier (e.g. 1d20+5). kh/kl — Keep highest or lowest N dice (e.g. 4d6kh3 = roll 4d6, keep best 3). You can chain multiple groups: 1d20+2d6+3.
Common Formulas
4d6kh3 — D&D ability scores (roll 4d6, drop lowest). 2d6+5 — Greatsword damage with +5 modifier. 1d20+8 — D&D attack roll with high bonus. 8d6 — Fireball damage. 2d6 — Board games like Monopoly or Catan.
Frequently Asked Questions
What dice notation formats are supported?
Standard NdX (2d6, 1d20), modifiers (+5, -2), keep highest/lowest (kh3, kl1), and multiple groups (1d20+2d6+5).
What does 4d6 drop lowest mean?
Roll 4 six-sided dice and drop the lowest result, keeping the best 3. Written as 4d6kh3. This is the standard method for D&D 5e ability score generation.
Are the dice rolls truly random?
Yes. All rolls use the Web Crypto API for cryptographically strong randomness, making every result fair and unbiased.