How to Add Indonesian Currency (Rupiah/IDR) Format in Flutter

Are you building a Flutter app and need to show prices in Indonesian Rupiah? Let me show you an easy way to do this!

Step 1: Add the intl Package

First, we need to add the intl package. This package helps us format numbers into currency. Add this line to your pubspec.yaml file:

Then run flutter pub get in your terminal.

Step 2: Create a Currency Format Helper

Create a new file called currency_format.dart. You can put this file in your utils folder or wherever you keep helper functions.

Add this code to your file:

import 'package:intl/intl.dart';

class CurrencyFormat {
  static String convertToIdr(double number, int decimalDigit) {
    NumberFormat currencyFormatter = NumberFormat.currency(
      locale: 'id',
      symbol: 'Rp ',
      decimalDigits: decimalDigit,
    );
    return currencyFormatter.format(number);
  }
}

Let’s understand what this code does:

• locale: id => tells the formatter to use Indonesian number format
• symbol: Rp => adds the Rupiah symbol before the number
• decimalDigits: lets you choose how many decimal places you want to show

Step 3: Using the Currency Format

Now you can easily format any number into Rupiah. Here’s how:

// Example: Convert 50000 to Rupiah
double money = 50000;
Text(CurrencyFormat.convertToIdr(money, 0))
// This will show: Rp 50.000

If you set decimalDigit to 2, it will show: Rp 50.000,00

That’s all! Now you can show Indonesian currency format in your Flutter app.

Tips:

• Use decimalDigit: 0 for whole numbers
• Use decimalDigit: 2 if you need to show cents
• Remember to import your currency_format.dart file where you want to use it