Calculator online will help you choose the right size of baby shoes (size children's shoes).
Now you will not have problems with choosing children's shoes, even if you buy online without a prior fitting, the main thing initially is to find out what size Shoe your child.
To know the size of baby shoes of your child enough to know (the length of the foot) in order to measure it, take a clean sheet of paper place it on the foot of the child and trace it with a pencil, now you can learn the exact size of the insole.