C# Round Up Two Decimal Places in C#?

Question

I have decimal numbers. I want to round up them with two places:

Original Value : 6.3619 
What I want    : 6.37

Original Value : 5.12003
What I want    : 5.13

I tried Math.Celing, Math.Round. But these methods don't give me the values I want.

I don't want to truncate decimal value.

@emert117 Should be Math.Round(integer, 2) to round to two decimal places. See this post: https://stackoverflow.com/questions/257005/how-do-you-round-a-number-to-two-decimal-places-in-c — nick gowdy, Mar 07 '19 at 11:36
If decimal number has something after second place, I want to round up it not truncate. — emert117, Mar 07 '19 at 11:38
Possible duplicate of [How do you round a number to two decimal places in C#?](https://stackoverflow.com/questions/257005/how-do-you-round-a-number-to-two-decimal-places-in-c) — James Coyle, Mar 07 '19 at 11:38
@DmitryBychenko, try post your above comment as an answer. I think it would be useful not only for the OP but also for future reader. — er-sho, Mar 07 '19 at 11:41

Dmitry Bychenko · Accepted Answer · 2019-03-08T06:38:22.323

3

Try Ceiling method:

Scale the value up: 6.3619 -> 636.19
Truncate with a help of Math.Ceiling: 636.19 -> 637
Finally, scale the result down: 637 -> 6.37

Code:

 var result = Math.Ceiling(value * 100.0) / 100.0;

Demo:

double[] tests = new double[] {
  6.3619,
  5.12003,
};

string report = string.Join(Environment.NewLine, tests
  .Select(test => $"{test,10} -> {Math.Ceiling(test * 100) / 100.0}"));

Console.Write(report);

Outcome:

  6.3619 -> 6.37
 5.12003 -> 5.13

edited Mar 08 '19 at 06:38

answered Mar 07 '19 at 11:42

Dmitry Bychenko

180,369
20
160
215

Note: `value * 100` overflows when near the maximum `double`. Yet for large `double`, no rounding needed as all large value are whole numbers. – chux - Reinstate Monica Mar 08 '19 at 06:00

score 0 · Answer 2 · answered Mar 07 '19 at 11:56

0

You should try this.

 var answer = Math.Ceiling(yourvalue * 100) / 100;

Please mark it as answer if this helps.

answered Mar 07 '19 at 11:56

Muhammad Adeel

11
3

score 0 · Answer 3 · answered Mar 07 '19 at 12:07

Try using this

private double RoundValueUp(double value, int NbDecimals)
{
    double multiplier = Math.Pow(10, Convert.ToDouble(NbDecimals));
    return Math.Ceiling(value * multiplier) / multiplier;
}

Thus you can use it like this RoundValueUp(6.3619, 2); In reference to LINK

C# Round Up Two Decimal Places in C#?

3 Answers3