You can use the following approach
For Example
package main
import (
"fmt"
"strconv"
)
func main() {
str := []byte("0125")
aByteToInt, _ := strconv.Atoi(string(str))
fmt.Println(aByteToInt)
}
You can run following code here https://play.golang.org/p/iq8Q9PkhM43
solved How to convert byte type value to int type value