How to use the dice roller
Choose the dice and seed, then read the total.
1
Set the dice pool
Pick how many dice and which size each one is.
2
Add a modifier
Apply a bonus or penalty to the sum.
3
Record the seed
Keep the seed to replay the same roll or change it for a new one.
What does this tool do?
Roll between one and ten dice from d4 to d20 and add a modifier. Results come from a seeded generator so the same roll stays on screen until you change the seed.
The Formula
Total = sum of dice + modifier; each die is 1 + floor(random × sides)Frequently Asked Questions
What is the most likely dice total?
For two six-sided dice, seven is the most likely total because more combinations produce it. Single dice are uniform, while sums cluster around the middle.
How do I roll with advantage?
Roll twice and keep the higher result. This tool shows one seeded roll per die, so use two seed values and compare the totals.