how fast is a orca in mph?
<answer> Orca is 34.5 miles per hour fast. <context> Killer Whale (Orcinus orca) - 34.5 miles per hour - 55 Kilometers per hour An orca's powerful tail can propel it through the water at speeds of up to an amazing 35 miles per h…our!   A killer whale can swim from 20 to 50 M.P.H.