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.
- The value you want to round.
- The number of decimals you want to keep after the value.
- 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 to round up decimal value to the nearest whole number?
You can use Math.Ceiling
decimal fees = Math.Ceiling(30 * 0.005M);
How do i round to the nearest whole number
When you want to round, just round:
double source = 1534488.74496255;
// if you want double (i.e. floating point result)
double result = Math.Round(source);
// if you want integer outcome (and source is positive)
int minutes = (int) (source + 0.5);
// if you want integer outcome (general case)
int minutes = (int) (source > 0 ? source + 0.5 : source - 0.5);
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
Round to the nearest whole number
Since you have fewer than 309 digits after the dot your number is a whole number. The scientific notation must be confusing you, for example 1.234e+003 is also an integer because it's equal to 1234.
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.
If you want to round up:
int roundedUp = (int)Math.Ceiling(precise);
Get average to closest whole number
You can get the nearest number do like this.
decimal d = 1.75M;
var ceiling = Math.Ceiling(d);
var floor = Math.Floor(d);
var closest = ceiling - d < d - floor ? ceiling : floor;
x.5
should have to be taken care of separately .
You can also use Math.Round()
How to round a integer to the close hundred?
Try the Math.Round
method. Here's how:
Math.Round(76d / 100d, 0) * 100;
Math.Round(121d / 100d, 0) * 100;
Math.Round(9660d / 100d, 0) * 100;
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