# Decimal.ToDouble() Method in C#

This method is used to convert the value of the specified Decimal to the equivalent double-precision floating-point number. This method can produce round-off errors as a double-precision floating-point number has few significant digits than a Decimal.

Syntax: public static double ToDouble (decimal d);
Here, d is the decimal value which is to be converted.

Return value: It returns a double-precision floating-point number equivalent to d.

Example:

 `// C# program to demonstrate the ` `// Decimal.ToDouble(Decimal) Method ` `using` `System; ` ` `  `class` `GFG { ` ` `  `    ``// Main Method ` `    ``public` `static` `void` `Main() ` `    ``{ ` `        ``try` `{ ` ` `  `            ``// Taking decimal variables ` `            ``Decimal dec1 = 0.0000000000134563456789M; ` `            ``Decimal dec2 = 4589662514452860951234M; ` ` `  `            ``// using ToDouble(Decimal) Method ` `            ``Double val1 = Decimal.ToDouble(dec1); ` `             `  `            ``// using ToDouble(Decimal) Method ` `            ``Double val2 = Decimal.ToDouble(dec2); ` ` `  `            ``// Printing the Double value ` `            ``Console.WriteLine(``"The Double value "` `                              ``+ ``"is : {0}"``, val1); ` `                               `  `            ``// Printing the Double value ` `            ``Console.WriteLine(``"The Double value "` `                              ``+ ``"is : {0}"``, val2); ` `                         `  `        ``} ` ` `  `        ``catch` `(OverflowException e)  ` `        ``{ ` `            ``Console.Write(``"Exception Thrown: "``); ` `            ``Console.Write(``"{0}"``, e.GetType(), e.Message); ` `        ``} ` `    ``} ` `} `

Output:

```The Double value is : 1.34563456789E-11
The Double value is : 4.58966251445286E+21
```

Reference:

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