I hate to say this but mermaids arent real....sorry
I do not know the required information to know how much the fictional characters weigh, considering they're underwater.
if they are out of water they can be really heavey
They are about 5'9 and weigh 120
it weigh's about 200 pounds
An average model weigh about 110 Ib.
Modst weigh about 2 pounds.
103 grams on average
an average person should weigh between 60 and 70kg
On average they weigh about 4.5 tons and are about 9 metres in length.
45
A lot
34kg