formatting - How to format big numbers in JavaScript? - Stack Overflow

I have the following big number: 2.9364136545300044e+24 I heed to format this value to 2,936,413.65 value

How could I do it of are there any libraries to make it?

I have the following big number: 2.9364136545300044e+24 I heed to format this value to 2,936,413.65 value

How could I do it of are there any libraries to make it?

• javascript
• formatting
• currency
• biginteger

Share Follow asked Oct 30, 2016 at 16:44 ErikErik 14.8k4949 gold badges140140 silver badges223223 bronze badges 4

• Convert the number to a String, and add a ma every third character from the right? – Carcigenicate Commented Oct 30, 2016 at 17:00
• Yes. But I need to take care for smaller numbers also – Erik Commented Oct 30, 2016 at 17:02
• Why would my suggestion not work for smaller numbers? – Carcigenicate Commented Oct 30, 2016 at 17:03
• Format numbers in Javascript – jfriend00 Commented Oct 30, 2016 at 17:30

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2 Answers 2

Sorted by: Reset to default 3

You can use Intl.NumberFormat.prototype.format, String.prototype.slice(), String.prototype.concat()

var number = 2.9364136545300044e+24;
var n = new Intl.NumberFormat().format(number);
var res = n.slice(0, 9).concat(".").concat(n.slice(10, 12));
console.log(res);

As a quick and easy solution you can use number.toLocaleString().

Since, the localString is based on Browser definition different users may get a different results. However, you can force a specific location to always get the same format. Ex: toLocaleString('en-GB', { timeZone: 'UTC' })