How old was Bucky in civil war biologically?

It is unknown exactly how old Bucky is, biologically. We know he was 27 years and 11 months old when he was presumed dead, in 1945. It feels probable that, from 1945 up to 2014, he has been cryogenically preserved, with on and off defrosting intervals where he became an assassin.

How old is Steve biologically?

After the jump to 1945, he presumably lived until 2023, which gives him an added 78 years to both of his ages. So overall, biologically Steve is 117, chronologically he’s 183.

How old was Bucky in the 40s?

In the revised Marvel Comics canon, on Major Samson’s recommendation, 16-year-old Bucky undergoes rigorous commando and special ops training under the direction of the British SAS in 1940.

How old is Steve Rogers physically?

Steve “Captain America” Rogers was born on 4th July (obvs) 1918. He crashed into the Arctic sometime in 1945, at the age of 27, before being thawed out 66 years later, in 2011. For the events of Captain America: The First Avenger, he’s still physically 27, but technically 93. For now we’ll go with 27, because ice.