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C#: How to format a Numeric String or Decimal as Currency

In this topic I will show examples on how to format your string, decimal/double or integer value in currency with C#. While working on any application it is always good to show user more human friendly money format rather than showing simple value.

Formatting currency is quite easy with C#. We’ll use the standard Currency (“C”) Format Specifier, it works like this: {0:C}.

//declare amount.
decimal amount = 1704.40m;

string currency = string.Format("{0:C}", amount);

We can get same result with the help of ToString() method like:

string currency = amount.ToString("C");

Output in both case will be:
$1,704.40

We can also get output in different currency symbol (e.g. ₹ $ £ ₩ € etc.) using culture information.

With the help of “CultureInfo.CreateSpecificCulture("culuture-name")“ one can set the culture information, and can print the price with the proper currency symbol.

For example:

For Indian Currency:
string.Format(CultureInfo.CreateSpecificCulture("hi-IN"), "{0:C}", amount);

Output: ₹ 1,704.40

For United States Currency:
string.Format(CultureInfo.CreateSpecificCulture("en-US"), "{0:C}", amount);

Output: $1,704.40

For British Pound Currency:
string.Format(CultureInfo.CreateSpecificCulture("en-GB"), "{0:C}", amount);

Output: £1,704.40

For European Euro Currency(you can use French culuture):
string.Format(CultureInfo.CreateSpecificCulture("fr-FR"), "{0:C}", amount);

Output: 1 704.40 €

Same way you can format currency value with other cultures, you can found all available culture names from here.

“It’s recommended to use numeric value for formatting, because if you try to format string value, it won’t format correctly. If your currency value is in a string, you need to convert it into a double or decimal before formatting.”

Hope it helps J
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