Author -  Sai gowtham

# How to count the total number of digits in a number in C#

In this tutorial we are going to learn, how to count the number of digits in a given number in C# with the help of examples.

Consider, we have following number in our C# code.

``int postalCode = 600583;``

To count the total number of digits in a given number, first we need to convert the number to a string then call a `.Length` property on it. So it returns the total number of digits in number.

In C# the `String.Length` property returns the number of characters in a string or it returns `0` for the empty string ("").

Here is an example:

``````using System;

class TotalDigitsCount {
static void Main() {
int postalCode = 600583;
int count = postalCode.ToString().Length;
Console.WriteLine(count);
}
}``````

Output:

``6``

In the example above, we first called the `ToString()` method on the number, so it converts the number to a string then we used the `Length` property to get the total number of digits.

Similarly, we can use the logarthmic solution to get the total number of digits from a number.

Here is an example:

``````using System;

class TotalDigitsCount {
static void Main() {
int postalCode = 600583;
double count = Math.Floor(Math.Log10(postalCode) + 1);;
Console.WriteLine(count);
}
}``````

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