# Dice Probability Calculator

> Roll dice notation like 3d6+2 and see the full probability distribution.

Dice notation like 3d6+2 means roll three six-sided dice and add two. This calculator computes the exact probability of every possible total by convolution rather than simulation, so the figures are precise — and shows the cumulative "at least" probability that matters for target numbers.

**URL:** https://convertto.tech/t/dice-probability-calculator
**Category:** Randomisers & Games (https://convertto.tech/c/random-generators)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Enter or paste your dice notation.
2. Set the simulated rolls.
3. Enter or paste your seed.
4. The result appears immediately — copy or download it.

## FAQ

### Why is 3d6 not evenly distributed?

Because there are many more ways to roll a 10 or 11 than a 3 or 18. A total of 3 requires all three dice to show 1 — exactly one combination out of 216 — while 10 can be reached 27 different ways.

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