To** get the length of a number in JavaScript**, you can convert the number to a string to get its length. The specific steps are below. Let’s get started.

**How to get the length of a number in JavaScript**

**Convert the number to a string and take the string length**

We can call the toString() technique on the number to switch it over entirely to a string. Then, at that point, access the length property of the string. Following the code below to understand.

**Syntax**:

`number.toString().length`

**Parameters**: `None`

**Return**: length of number

**Get the length of an integer number**

**Code example**:

const number1 = 953167; // 6 const number2 = 4562; // 4 console.log("The length of number", number1, "=", number1.toString().length); console.log("The length of number", number2, "=", number2.toString().length);

**Output**:

```
The length of number 953167 = 6
The length of number 4562 = 4
```

**Get the length of a float number**

The decimal point will be incorporated while getting to the length property of the string portrayal of the float.

**Code example**:

const floatNumber1 = 12312.4512; console.log("The length of float number", floatNumber1, "=", floatNumber1.toString().length - 1) // 9 const floatNumber2 = 524521.1; console.log("The length of float number", floatNumber2, "=", floatNumber2.toString().length - 1);; // 7

**Output**:

```
The length of number 12312.4512 = 9
The length of number 524521.1 = 7
```

**Use Math.ceil() and Math.log10() methods**

You can use a simple numerical way to deal with getting the length of a number.

**Code example**:

function getLength(number) { return Math.ceil(Math.log10(number + 1)); } const number1 = 9531642; console.log("The length of number", number1, "=", getLength(number1)); // 7 const number2 = 1231; console.log("The length of number", number2, "=", getLength(number2)); // 4

**Output**:

```
The length of number 9531642 = 7
The length of number 1231 = 4
```

In the code line above, the` Math.log10()`

function returns a number of logarithm base 10, and the `Math.ceil()`

function returns a number that is rounded.

**Code example**:

number = 62512; console.log("The logarithm of base 10",number, "is",Math.log10(number)); // 4.795963393880709 console.log("The round logarithm of base 10",number, "is",Math.ceil(Math.log10(number))); // 5

**Output**:

```
The logarithm of base 10 62512 is 4.7959633938807095
The round logarithm of base 10 of 62512 is 5
```

**Summary**

This article shows you **how to get the length of a number in JavaScript**. The two methods mentioned in this article are the most straightforward approaches. Hopefully, they will help you. Leave a comment below if you have any problems.

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Hi, guys! My name’s Scott Miller. My current job is a software developer and I have shared a lot of quality articles about Javascript, C, C++, C#, Python, PHP, R, Java programming languages. I’m hoping they can assist you.

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