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# Convert.ToDecimal Method (Double)

.NET Framework 4.6 and 4.5

Converts the value of the specified double-precision floating-point number to an equivalent decimal number.

Namespace:  System
Assemblies:   System.Runtime.Extensions (in System.Runtime.Extensions.dll)
mscorlib (in mscorlib.dll)

## Syntax

```public static decimal ToDecimal(
double value
)
```

#### Parameters

value
Type: System.Double

The double-precision floating-point number to convert.

#### Return Value

Type: System.Decimal
A decimal number that is equivalent to value.

## Exceptions

ExceptionCondition
OverflowException

value is greater than Decimal.MaxValue or less than Decimal.MinValue.

## Remarks

The Decimal value returned by this method contains a maximum of 15 significant digits. If the value parameter contains more than 15 significant digits, it is rounded using rounding to nearest. The following example illustrates how the Convert.ToDecimal(Double) method uses rounding to nearest to return a Decimal value with 15 significant digits.

```Console.WriteLine(Convert.ToDecimal(123456789012345500.12D));  // Displays 123456789012346000
Console.WriteLine(Convert.ToDecimal(123456789012346500.12D));  // Displays 123456789012346000

Console.WriteLine(Convert.ToDecimal(10030.12345678905D));      // Displays 10030.123456789
Console.WriteLine(Convert.ToDecimal(10030.12345678915D));      // Displays 10030.1234567892
```

## Examples

The following example converts a Double value to a Decimal value.

```		public void ConvertDoubleDecimal(decimal decimalVal){

double doubleVal;

// Decimal to double conversion cannot overflow.
doubleVal = System.Convert.ToDouble(decimalVal);
System.Console.WriteLine("{0} as a double is: {1}",
decimalVal, doubleVal);

// Conversion from double to decimal can overflow.
try
{
decimalVal = System.Convert.ToDecimal(doubleVal);
System.Console.WriteLine ("{0} as a decimal is: {1}",
doubleVal, decimalVal);
}
catch (System.OverflowException) {
System.Console.WriteLine(
"Overflow in double-to-double conversion.");
}

}
```

## Version Information

#### .NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

#### .NET Framework Client Profile

Supported in: 4, 3.5 SP1

#### XNA Framework

Supported in: 3.0, 2.0, 1.0

#### Portable Class Library

Supported in: Portable Class Library
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8