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Hamming Distance Calculator Online

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The Hamming Distance Calculator is a tool used to determine the Hamming distance between two strings of equal length. But what is Hamming distance, and why is it important?

Hamming Distance measures the dissimilarity between two strings by calculating the number of differing elements at corresponding positions. In simpler terms, it quantifies how different two strings are when they are of the same length.

Formula of Hamming Distance Calculator

The formula to calculate the Hamming distance between two strings of equal length is as follows:

Let’s say you have two strings, A and B, both of length ‘n’.

Hamming distance = Σᵢ (Aᵢ ≠ Bᵢ)


  • A and B are strings of equal length ‘n’.
  • Aᵢ and Bᵢ represent the symbols (characters, bits, etc.) at position ‘i’ in strings A and B, respectively.
  • Σᵢ denotes the sum over all positions ‘i’ from 1 to ‘n’.
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In simpler terms, you compare each character or element in the two strings at the same position and count how many times they differ. The total count gives you the Hamming distance.

General Terms Table

Before we proceed further, here’s a helpful table of some general terms that people often search for when using the Hamming Distance Calculator. These terms can save you time by providing quick references instead of calculating each time.

Hamming DistanceThe measure of dissimilarity between two strings
Binary StringsStrings composed of binary digits (0s and 1s)
Bitwise XORA binary operation comparing two binary digits

Example of Hamming Distance Calculator

Let’s illustrate how the Hamming Distance Calculator works with an example:

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Suppose we have two binary strings, A = “11001” and B = “10110”. We want to find their Hamming distance.

  1. Compare the first digits: A₁ ≠ B₁ (1 ≠ 1) – No difference.
  2. Compare the second digits: A₂ ≠ B₂ (1 ≠ 0) – Difference.
  3. Compare the third digits: A₃ ≠ B₃ (0 ≠ 1) – Difference.
  4. Compare the fourth digits: A₄ ≠ B₄ (0 ≠ 1) – Difference.
  5. Compare the fifth digits: A₅ ≠ B₅ (1 ≠ 0) – Difference.

Now, sum up the differences: 0 + 1 + 1 + 1 + 1 = 4. So, the Hamming distance between A and B is 4.

Most Common FAQs

Q2: Are there any real-world applications of Hamming distance?

Answer: Yes, Hamming distance finds applications in network communication, computer memory, error-correcting codes, and DNA sequence alignment.

Q3: Can Hamming distance be calculated for strings of different lengths?

Answer: No, Hamming distance requires the compared strings to be of equal length. If they are of different lengths, you need to pad or truncate them to make them the same length for comparison.

Q4: What is the range of Hamming distance values?

Answer: The Hamming distance ranges from 0 to the length of the strings being compared. A Hamming distance of 0 means the strings are identical, while a distance equal to the string length indicates they are entirely dissimilar.

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