They vary in weight greatly - from 10kg, up to 10 tonnes (which is 10000kg).
But since I presume you're asking for the common dolphin -
a common dolphin can weigh up to 75 kg.
190 pounds is 86.2 kilograms.
224 pounds = 101.604691 kilograms
2
215 pounds equals about 97.5 kilograms.
If you weigh 56 pounds, you weigh about 25.5 kilograms.
big
88.1849049 pounds
On Earth's moon, it would weigh 7.4 kilograms.
If you weigh 97 pounds, you weigh approximately 44 kilograms.
0.8 kilograms for men. 0.6 kilograms for women
About 350 pounds.
450 pounds