how to convert uint8 to string in golang?

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To convert uint8 to string in golang, just use the strconv.FormatUint() method and pass your integer, it will convert uint8 to string.

As we know FormatUint() method accepts only uint64 show first we have to convert uint8 to uint64 using the uint64() method.

Important Points

Difference between int and uint

UInt does not allow for negative numbers.

uint’s and int’s max value

uint8  : 0 to 255 
uint16 : 0 to 65535 
uint32 : 0 to 4294967295 
uint64 : 0 to 18446744073709551615 
int8   : -128 to 127 
int16  : -32768 to 32767 
int32  : -2147483648 to 2147483647 
int64  : -9223372036854775808 to 9223372036854775807

Today, I will show you how do I convert uint8 to string in golang, as mentioned above I’m going to use the strconv.FormatUint() way.

The strconv package provide strconv.FormatUint() method.

Let’s start our Golang convert uint8 to string example

Convert uint8 to string example

main.go

package main

import (
	"strconv"
	"fmt"
	"reflect"
)

func main() {
  var i uint8 = 18
  fmt.Println(i, reflect.TypeOf(i))

  s := strconv.FormatUint(uint64(i), 10)
  fmt.Println(s, reflect.TypeOf(s))
}

In the above example, we have converted uint8 to string and printed it in the golang console. let’s check the output.

Output

18 uint8
18 string

Try it Yourself

I hope it helps you, All the best 👍.