how to calculate transaction bytes of a x BTC? x=0.2 i have read : How to calculate transaction size before sending

but i will not understand what are in and out.
as describe in this link in=40 and out=16

what does it mean???

i will send only one address to 0.20BTC of 1BTC account.
please describe this transaction size.
In the simplest typical case, you'll have one input and two outputs (the recipient, and change). So in=1 and out=2. According to the linked formula, the transaction size will be about 160+2*34+10 = 258 bytes. It does not depend on how many bitcoins you are sending.

However, if the money you are sending came from many different sources, you will have many inputs and the transaction will be bigger. Again, this does not depend on the amount of money, but on the complexity of your wallet's history.