Show a number to two decimal places in Dart (Flutter)

To round a double number to two decimal places in Dart and Flutter, you can use the toStringAsFixed() method.

Note: You can set an arbitrary number of decimal places, like this: toStringAsFixed(N). However, numbers are usually displayed with 2 decimal places in most cases.

Example

The code:

import 'package:flutter/foundation.dart';

void main() {
  const number1 = 1.233;
  const number2 = 4.357;
  const number3 = 10.994;

  if (kDebugMode) {
    print(number1.toStringAsFixed(2));
    print(number2.toStringAsFixed(2));
    print(number3.toStringAsFixed(2));
  }
}

Output:

1.23
4.36
10.99

Further reading:

• Dart: Convert Class Instances (Objects) to Maps and Vice Versa
• How to Flatten a Nested List in Dart
• Inheritance in Dart: A Quick Example
• Flutter & Dart: 3 Ways to Generate Random Strings
• Flutter & Dart: Displaying Large Numbers with Digit Grouping
• Using Cascade Notation in Dart and Flutter

You can also check out our Flutter category page or Dart category page for the latest tutorials and examples.