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Decimal.ToInt32() Method in C# - GeeksforGeeks

Decimal.ToInt32() Method in C#

Last Updated : 11 Jul, 2025

This method is used to convert the value of the specified Decimal to the equivalent 32-bit signed integer. A user can also convert a Decimal value to a 32-bit integer by using the Explicit assignment operator.

Syntax: public static int ToInt32 (decimal value); Here, the value is the decimal number which is to be converted. Return Value: It returns a 32-bit signed integer equivalent to the specified value. Exception: This method will give OverflowException if the specified value is less than MinValue or greater than MaxValue.

Below programs illustrate the use of the above-discussed method:

Example 1: csharp 
// C# program to demonstrate the
// Decimal.ToInt32(Decimal) Method
using System;

class GFG {

    // Main Method
    public static void Main()
    {
        try {

            // Taking decimal variables
            Decimal dec1 = 2147483647M;
            Decimal dec2 = 21458565.2996m;

            // using Decimal.ToInt32(Decimal) Method
            // Here int means Int32
            int val1 = Decimal.ToInt32(dec1);
            
            // using Decimal.ToInt32(Decimal) Method
            // Here int means Int32
            int val2 = Decimal.ToInt32(dec2);
            

            // Printing the Int32 value
            Console.WriteLine("The Int32 value "
                            + "is : {0}", val1);
                                
            // Printing the Int32 value
            Console.WriteLine("The Int32 value "
                            + "is : {0}", val2);
                        
        }

        catch (OverflowException e) 
        {
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
Output: 
The Int32 value is : 2147483647
The Int32 value is : 21458565
Example 2:

For

OverflowException csharp 
// C# program to demonstrate the
// Decimal.ToInt32(Decimal) Method
using System;

class GFG {

    // Main Method
    public static void Main()
    {
        try {

            // Taking decimal variables
            // taking a decimal number 
            // above the range of Int32
            Decimal dec1 = 2147483648M;
            
            // Taking the maximum value 
            // of Decimal
            Decimal dec2 = Decimal.MaxValue;

            // using Decimal.ToInt32(Decimal) Method
            // Here int means Int32
            // It will give error as decimal number 
            // is above the range of Int32
            int val1 = Decimal.ToInt32(dec1);
            
            // using Decimal.ToInt32(Decimal) Method
            // Here int means Int32
            // It will give error as Decimal.MaxValue
            // value is out of range from Int32
            int val2 = Decimal.ToInt32(dec2);
            

            // Printing the Int32 value
            Console.WriteLine("The Int32 value "
                            + "is : {0}", val1);
                                
            // Printing the Int32 value
            Console.WriteLine("The Int32 value "
                            + "is : {0}", val2);
                        
        }

        catch (OverflowException e) 
        {
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
Output: 
Exception Thrown: System.OverflowException
Reference:

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