# Golang : Find the length of big.Int variable example

There is a chance that you will ever need to get the length of `big.Int`

variable and below is a simple example on how to count the length of a `big.Int`

variable.

```
package main
import (
"fmt"
"math/big"
)
func main() {
// base 10
bigInteger := new(big.Int)
bigInteger.SetString("100000000000000000L", 10) //18
fmt.Println("Value : ", bigInteger)
fmt.Println("Length : ", len(bigInteger.Text(10)))
}
```

Output:

Value : 100000000000000000

Length : 18

Reference:

https://www.socketloop.com/tutorials/golang-convert-string-or-integer-to-big-int-type

#### See also : Golang : Calculate Relative Strength Index(RSI) example

##### By Adam Ng(黃武俊)

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