That depends where you live, and where you want to send it. Better ask your post office.
2.15
145 oz
4.2 oz
145
$1.35
145 ounces = 4.11068085 kilograms
It depends on where you live.
how much a first letter that weighs 2.1 oz cost to mail
, Could you please tell me how much postage I would need to mail a large envelope weighing 4.3 OZ to the UK?
That depends where you are posting it and how much it costs to post.
about $13
7.2