How to Round Up Value C# to the Nearest Integer

How to round up value C# to the nearest integer?

Use Math.Ceiling to round up

Math.Ceiling(0.5); // 1

Use Math.Round to just round

Math.Round(0.5, MidpointRounding.AwayFromZero); // 1

And Math.Floor to round down

Math.Floor(0.5); // 0

How to Round to the nearest whole number in C#

See the official documentation for more. For example:

Basically you give the Math.Round method three parameters.

1. The value you want to round.
2. The number of decimals you want to keep after the value.
3. An optional parameter you can invoke to use AwayFromZero rounding. (ignored unless rounding is ambiguous, e.g. 1.5)

Sample code:

var roundedA = Math.Round(1.1, 0); // Output: 1
var roundedB = Math.Round(1.5, 0, MidpointRounding.AwayFromZero); // Output: 2
var roundedC = Math.Round(1.9, 0); // Output: 2
var roundedD = Math.Round(2.5, 0); // Output: 2
var roundedE = Math.Round(2.5, 0, MidpointRounding.AwayFromZero); // Output: 3
var roundedF = Math.Round(3.49, 0, MidpointRounding.AwayFromZero); // Output: 3

Live Demo

You need MidpointRounding.AwayFromZero if you want a .5 value to be rounded up. Unfortunately this isn't the default behavior for Math.Round(). If using MidpointRounding.ToEven (the default) the value is rounded to the nearest even number (1.5 is rounded to 2, but 2.5 is also rounded to 2).

C# - Rounding Down to Nearest Integer

Just try this..

 int interval = Convert.ToInt32(Math.Floor(different/increment));

How do I round a float upwards to the nearest int in C#?

If you want to round to the nearest int:

int rounded = (int)Math.Round(precise, 0);

You can also use:

int rounded = Convert.ToInt32(precise);

Which will use Math.Round(x, 0); to round and cast for you. It looks neater but is slightly less clear IMO.

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If you want to round up:

int roundedUp = (int)Math.Ceiling(precise);

How to round up decimal value to the nearest whole number?

You can use Math.Ceiling

decimal fees = Math.Ceiling(30 * 0.005M);

how to round up a double value to nearest integer in c#

The max value of UInt is 4,294,967,295.

You need to keep it a double or a long

EDIT: Or ulong if you want to keep it unsigned

Anyway to round up to the nearest integer in a list in C#?

For Up option, you can search temp to look for the value that is greater than your value and take it.

for (int i = 1; i < temp.Count; i++)
    if (temp [i] > value)
    {
        value = temp[i];
        break;
    }

If your value is grater than or equal the last value, you take the last value:

if (value >= temp[temp.Count - 1])
    value = temp[temp.Count - 1];

And you can do the opposite for Down option.

how to always round up to the next integer

Math.Ceiling((double)list.Count() / 10);

How might I convert a double to the nearest integer value?

Use Math.round(), possibly in conjunction with MidpointRounding.AwayFromZero

eg:

Math.Round(1.2) ==> 1
Math.Round(1.5) ==> 2
Math.Round(2.5) ==> 2
Math.Round(2.5, MidpointRounding.AwayFromZero) ==> 3

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