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How to round a decimal value in C#
Theodore Kelechukwu OnyejiakuOverview
The Decimal.Round() method is used to round a decimal value to the nearest integer or number of decimal places.
Syntax
public static decimal Round (decimal d);
// number of decimal places
public static decimal Round (decimal d, int decimals);
Parameters
-
decimal d: This is the decimal number we want to round. It’s mandatory. -
int decimals: This is the number of decimal places we want to round a decimal number to. It’s optional.
Return value
A decimal value that is the decimal number equivalent to d rounded to decimal places.
Example
// use System
using System;
// create class
class Rounder
{
// main method
static void Main()
{
// create decimal values
decimal d1 = 345.453m;
decimal d2 = 2.5m;
decimal d3 = -4.1115m;
// round the values
Console.WriteLine(Decimal.Round(d1));
Console.WriteLine(Decimal.Round(d2));
Console.WriteLine(Decimal.Round(d3));
}
}Rounding the decimal numbers into whole number in C#.
Explanation
-
Line 11–13: We create decimal variables
d1,d2, andd3. -
Line 16–18: We round the values with the
Decimal.Round()method and print them to the console.
Example
// use System
using System;
// create class
class RoundDecimal
{
// main method
static void Main()
{
// create decimal values
decimal d1 = 23.45m;
decimal d2 = 3.4444584854m;
// round to some decimal places
decimal r1 = Decimal.Round(d1, 1);
decimal r2 = Decimal.Round(d2, 4);
// print results
Console.WriteLine(r1);
Console.WriteLine(r2);
}
}Rounding the decimal numbers to specific decimal places in C#.
Explanation
- Line 10 and 11: We create two decimal variables,
d1andd2. - Line 14: We round
d1to one decimal place. - Line 15: We round
d2to four decimal places. - Line 18 and 19: We print the results.
RELATED TAGS
decimal
round
c#
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Theodore Kelechukwu OnyejiakuRELATED COURSES
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