Coin Flip Probability Calculator

Author: Calculator Academy Team

Last Updated:

Coin Probability Calculator

Basic Calculator
Advanced Calculator

Enter any 2 values to calculate the missing variable

Enter the number of heads or tails you want to calculate the probability of into the calculator to determine the chance of getting that amount. For example, if you flip a coin 10 times, what are the chances you get 10 heads.

What is a coin flip probability?

Coin flip probability refers to the likelihood of obtaining a specific outcome when flipping a fair, unbiased coin. When a coin is flipped, there are two possible outcomes: it can either land on heads or tails. Since these outcomes are equally likely, the probability of each outcome is 1/2 or 50%.

It is a simple and fundamental example of understanding probability theory and its applications in various fields. By studying coin flip probability, we gain insights into more complex probability problems.


1. What is the probability of flipping a coin and getting heads?
The probability of flipping a coin and getting heads is 50%, assuming it’s a fair coin with two distinct sides, heads and tails. This is because there are two possible outcomes, each equally likely.

2. Can the outcome of a coin flip be predicted?
No, the outcome of a fair coin flip cannot be predicted with certainty as it is a random event. Each flip is independent of the previous flips, meaning the result of one flip does not influence the outcome of the next flip.

3. How does flipping a coin multiple times affect the probability of getting heads?
Flipping a coin multiple times does not change the probability of getting heads in any single flip, which remains at 50%. However, with a large number of flips, the overall distribution of outcomes will tend to approach an even split between heads and tails due to the law of large numbers.

coin flip probability calculator