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.
big
If you weigh 56 pounds, you weigh about 25.5 kilograms.
88.1849049 pounds
On Earth's moon, it would weigh 7.4 kilograms.
0.8 kilograms for men. 0.6 kilograms for women
If you weigh 97 pounds, you weigh approximately 44 kilograms.
About 350 pounds.
450 pounds