Travis Frain, 19, had been visiting parliament with university friends and was walking across Westminster Bridge when he was mowed down by the terrorist's 4×4 in March.
He told ITV's Good Morning Britain he was texting on his mobile when one shouted to him, and he saw Masood's car in front of him.
Mr Frain said: "I looked up and you don't have enough time to react. The fact that my body didn't tense up and was thrown almost like a rag doll over the bonnet.
Travis Frain said that he was thrown over the car like a rag doll
The 19 year old was visiting Parliament with friends from his university Victims of the Westminster terror attack Fri, April 7, 2017
The Westminster attack has now killed six people
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Andreea Cristea died of her injuries following the Westminster terror attacks
As weird as it is, life goes on
"I landed on the left side and my head was actually cushioned by a friend, whereas obviously if it had landed on the concrete with the same force that the rest of my body had, we don't know what could have happened."
Mr Frain, who is studying politics and history at university in Lancashire, walked around in a "blur" immediately after the incident, calling his mother from the bridge to tell her was okay.
He suffered a fractured leg, fractured left arm, cuts to his thigh and two broken fingers and was visited by the Prince of Wales while he was recovering at King's College Hospital.
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Mr Frain has not let the incident put him off visiting parliament again
Mr Frain, who wants to become an MP, has been back to Westminster Bridge twice since the attack and said the incident had not left him with flashbacks or deterred him from visiting London.
He told GMB: "I wanted to see it again. It's not going to put me off London. As weird as it is, life goes on."