How to round up number in dart language – Flutter

Hi Guys, Welcome to Proto Coders Point. In this flutter dart article let’s learn how to round up a number in Dart Language.

Dart Round Double to Integer

In dart to round up a number to the nearest integer, we can make use of a method round(). This round() method in dart convert double to int. In simple words the decimal point number will get converted to closest integer number.

Eg:

To use dart round() method, we need to import foundation.dart package.

Example: dart convert double to int

import 'package:flutter/foundation.dart';

void main(){
  
 var n = 15.5199;
  print(n.round());      // 16 
  
  var x = 4.49;
   print(x.round());     //  4 
  
  var y = -1.50;
   print(y.round());       // -2 
  
  var z = 0.5;
   print(z.round());      //   1
  
  
  var a = 0.4;
   print(a.round());       //     0
 

}

Learn More on dart official docs.