Dice Roller & Coin Flipper

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What is a Dice Roller and Coin Flipper?

This tool replaces a real die and a real coin on your screen. Press a button, and it picks a random result for you: a number from 1 to 6 on each die, or Heads or Tails on the coin. It is handy when you do not have dice at hand, when a die has rolled off the table, or when you want a quick, neutral way to decide something.

The Dice tab rolls as many dice as you choose and adds them up for you. The Coin tab flips a single coin. Both keep a short history so you can look back at what just happened.

How to Roll Dice Online

1. Open the Dice tab.
2. Choose how many dice you want to roll.
3. Press the big Roll Dice button and watch the dice roll.
4. Read each die, shown with its dots, and check the total score below.
5. Press Roll Dice again for another roll, or Reset to start fresh.

How to Flip a Coin Online

1. Open the Coin tab.
2. Decide which side means what, for example Heads for yes and Tails for no.
3. Press Flip Coin and watch the coin spin and land.
4. Read the result, shown in large text as Heads or Tails.
5. Check the history to see recent flips, or press Reset to clear them.

Agree on what each side means before you flip, so nobody changes the rules after seeing the result.

What You See on the Page

Item	Meaning
Dice and Coin tabs	Switch between rolling dice and flipping a coin
Number of dice	How many dice are rolled at once
Roll Dice and Flip Coin buttons	Start the roll or the flip
Dots (pips) on each die	The result of that die, from 1 to 6
Total	The sum of all dice in the current roll
Heads or Tails	The result of the coin flip, shown in large text
History	A list of your recent results
Reset	Clears the results so you can start again

Dice Facts and Pips

A standard die has six faces with the numbers 1 to 6, shown as dots called pips. On a real die, opposite faces always add up to 7.

Face	Opposite face	Sum
1	6	7
2	5	7
3	4	7

Dice Totals and Probability

With one die, every number from 1 to 6 has the same chance, 1 in 6 or about 16.7 percent. With more dice, some totals are much more likely than others, because they can be made in more ways. The table shows the chances for two dice, out of 36 possible combinations.

Total	Ways to make it	Chance
2	1	2.8%
3	2	5.6%
4	3	8.3%
5	4	11.1%
6	5	13.9%
7	6	16.7%
8	5	13.9%
9	4	11.1%
10	3	8.3%
11	2	5.6%
12	1	2.8%

Percentages are rounded. Seven is the most likely total with two dice, and 2 and 12 are the least likely.

Quick rules for any number of dice

Dice	Lowest total	Highest total	Average total
1	1	6	3.5
2	2	12	7
3	3	18	10.5
4	4	24	14
5	5	30	17.5
6	6	36	21

The lowest total is the number of dice, the highest is six times the number of dice, and the average is 3.5 times the number of dice. The average is what you get over many rolls, not what you will get every time.

Coin Flip Probability

A fair coin has a 1 in 2 chance of landing on Heads and 1 in 2 on Tails, and each flip is independent of the flips before it.

Question	Chance
Heads on one flip	1 in 2 (50%)
Heads twice in a row	1 in 4 (25%)
Heads three times in a row	1 in 8 (12.5%)
At least one Heads in three flips	7 in 8 (87.5%)

The gambler's fallacy

After five Heads in a row, many people feel that Tails is due. It is not. The coin has no memory, so the next flip is still 50-50. A streak can feel unusual, but streaks are a normal part of random results. The same goes for dice: rolling no six for ten rolls does not make a six more likely on the next roll.

What Can You Use It For?

• Board games: Ludo and Snakes and Ladders use one die, and games such as Monopoly use two. Yahtzee uses five.
• Deciding who goes first: A coin flip is a quick, fair-feeling way to settle it, just like the toss at the start of a cricket match.
• Small decisions: Choose a film, a restaurant or who washes the dishes.
• Classroom and maths practice: Roll many times and compare the results with the probability tables above.
• Games with kids: A fun way to practise counting and adding.
• When you have lost your dice: A replacement on your phone for game night.

Tips

• Agree on the rules first. Decide what Heads and Tails mean, or how many dice to roll, before you press the button.
• Check the total. It is added for you, but it helps to glance at the dots yourself in a close game.
• Use the history. If someone asks what the last roll was, look at the list instead of arguing.
• Roll again only when the rules allow it. A re-roll that is not in the rules can change the result of the game.
• Pass the phone around. On mobile, each player can press the button on their turn.
• For other dice, such as a d20, use a tool built for them. This one rolls standard six-sided dice.

Good to Know

• Random but not certified. The results come from your browser's pseudo-random generator, which is fine for games and everyday choices.
• Not for gambling. Do not use this tool for real-money gambling, lotteries or any draw that needs a checked, certified or secure random result.
• Not for official draws. Contests and prize draws usually need a method that other people can check.
• Standard dice only. The dice have six sides, numbered 1 to 6.

Common Mistakes

• Thinking a result is due: After a streak, the next roll or flip has the same chances as always.
• Forgetting what each coin side means: Agree on it before you flip.
• Expecting every total to be equally likely: With two or more dice, middle totals come up more often than the lowest and highest.
• Re-flipping until you like the answer: That is not a fair coin flip. Accept the first result.
• Using it for something that needs a proof of fairness: Use a method that can be checked by others.

Privacy

• The dice and the coin run in your browser, and nothing you do on this page is sent to our server.
• No signup, no account and no app install are needed.

Frequently Asked Questions

How do I roll dice online?

Open the Dice tab, choose how many dice you want to roll and press Roll Dice. The dice shake and roll, then each die shows its result as dots, and the total of all dice is shown below.

How do I flip a coin online?

Open the Coin tab and press Flip Coin. The coin spins in the air and lands on Heads or Tails, and the result is shown in large text.

Are the dice and the coin fair?

Each roll and each flip is a separate random pick, so a die face has a 1 in 6 chance and Heads or Tails each have a 1 in 2 chance. Browsers use a pseudo-random number generator, which is fine for games, classroom use and everyday decisions, but it should not be used for gambling, lotteries or anything that needs a certified or secure random result.

What is the most likely total when I roll two dice?

Seven is the most likely total with two dice. It can be made in 6 of the 36 possible combinations, which is about 16.7 percent. The totals 2 and 12 are the least likely, with only 1 combination out of 36 each, which is about 2.8 percent.

If I get Heads five times in a row, is Tails more likely next?

No. Each flip is independent, so the chance of Heads or Tails is still 1 in 2 on the next flip, however many times the same result came before. Believing that Tails is due is called the gambler's fallacy.

How is the total score calculated?

The total is the sum of all the dice you rolled. For example, if three dice show 2, 5 and 6, the total is 13. With a single die, the total is simply the number shown.

Can I use this for board games like Ludo or Snakes and Ladders?

Yes. Roll one die for games such as Ludo or Snakes and Ladders, or two dice for games that use a pair. Each player can take a turn on the same screen. The tool uses standard six-sided dice only.

Does it have dice with more sides, like a d20?

No. This tool rolls standard six-sided dice. If your game needs other dice, such as a d20 for tabletop role-playing, you need a different tool.

Can I use the coin flip to make a decision?

Yes, it works well for small choices, such as who goes first or which film to watch. For important decisions, use it only as a tiebreaker after you have thought it through. It is not suitable for official draws or contests, which need a method that can be checked.

What does the history section show, and what does Reset do?

The history section lists your recent results so you can look back at the last rolls or flips. Press Reset to clear the results and start again.

Is my data sent to a server?

No. The dice and the coin run in your browser using JavaScript, and nothing you do on this page is sent to our server.

Is this dice roller and coin flipper free, and does it work on mobile?

Yes. The tool is free and needs no signup or app install. It is designed for phone screens as well as desktop.