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Coin Flip (Heads or Tails)
Flip a fair virtual coin: heads or tails, one flip or many, with a running tally.
Dice Roller
Roll one or more virtual dice (d4, d6, d8, d10, d12, d20 or d100) and see each die and the total.
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How to use this calculator
Enter your values. Press Roll dice for a new result. Use Share to send the calculator with your result.
Dice notation
NdS+M means roll N dice with S sides and add M. “2d6+3” is two six-sided dice plus 3, giving 5 to 15. The average of one die is (S + 1) ÷ 2, so 2d6 averages 7.
Frequently asked questions
How do I roll a d20?
Set Number of dice to 1 and Sides to d20.
What is the most common total with two dice?
7: six of the 36 combinations add up to 7 (a 1 in 6 chance).
About this tool
- Written by
- [Author: to be assigned]
- Reviewed by
- Formula tests passed · human review pending
- Last updated
- 31 Oct 2026
See our methodology and editorial policy. Think something’s off? Report an error with this tool.
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