About this tool
Lost the dice for game night? This roller simulates perfectly balanced dice. Standard six-sided dice are drawn with pips, other dice show the number, and the total is computed for you — ideal for board games, Yahtzee, Dungeons & Dragons and classroom probability exercises.
Rolling several dice and adding them up changes the odds in an interesting way. A single d6 is flat: every number from 1 to 6 turns up one time in six. Add a second die and the totals bunch toward the middle — a total of 7 can be made six different ways out of 36, while 2 and 12 have only one way each. The more dice you add, the more the sums resemble a bell curve, which is why stats rolled with 3d6 rarely land at the extremes.
How to use it
- Adjust the options above to match what you need.
- Press Generate (or hit Enter / Space) to create fresh results instantly.
- Click any result to copy it, or use Copy all.
- Download everything as CSV, JSON or TXT, or share a link with your settings.
Popular uses
- Board games — Monopoly, Catan, backgammon and more.
- Tabletop RPGs — d20 checks and damage rolls for D&D and Pathfinder.
- Teaching probability — explore distributions of sums.
Why use RandNow?
- Instant & unlimited — no sign-up, no daily caps.
- Private by design — results are generated in your browser, not on our servers.
- Export-ready — copy, CSV, JSON and TXT downloads built in.
- Cryptographically random — powered by the Web Crypto API.
A quick guide to polyhedral dice
Tabletop games use a family of dice named after their number of faces. The d4 is a pyramid, the d6 a cube, the d8 an octahedron, the d12 a dodecahedron and the d20 an icosahedron — the die that most role-playing checks depend on. The d10 is a pentagonal trapezohedron, and a percentile roll (d100) is traditionally made with two d10s, one for the tens and one for the units. A virtual roller sidesteps worn edges, uneven pips and dice that tumble off the table and under the sofa.
Tips for game night and the classroom
Agree on house rules for rerolls before you start, and say the notation out loud — “3d6 plus 2” — so nobody argues later. For advantage in D&D fifth edition, roll two d20s and keep the higher; for disadvantage, keep the lower. Teachers can ask students to roll two dice twenty times, tally the totals and compare them with the expected pattern that peaks at 7. Small samples look lumpy, which is a useful lesson in itself. Ready to play? Choose your die type and how many you need, then press Generate to roll.
Frequently asked questions
Are the dice fair?
Yes, every face has an exactly equal chance on every roll.
How many dice can I roll?
Up to 20 at once, with any of the standard polyhedral dice.
What does “2d6” mean?
Tabletop notation for “roll two six-sided dice and add them”.
Why does 7 come up so often with two dice?
Because more combinations add up to 7 than to any other total: 1+6, 2+5, 3+4, 4+3, 5+2 and 6+1. That gives 7 a one-in-six chance, while 2 and 12 each have just one in 36.
How do I roll with advantage?
Roll two d20s at once and use the higher number. For disadvantage, use the lower one.