Considering Tony moved away from producing weapons in the years surrounding Iron Man, it can be assumed that Wanda and her brother were around 10 in 2008. If they were born somewhere between 1998 and 2000, Wanda would currently be between 18 and 20-years-old in the franchise.

Despite being played by a then 27 year-old actress, dialogue in Captain America: Civil War and Avengers: Age of Ultron implies that Wanda Maximoff is younger than she seems and Dawson Casting is in play.

In Civil War, she was 27, and by the time of WandaVision in 2023, she was 29. Although Civil War took place in 2016, Wanda lost five years when Thanos snapped her and half the universe away in 2018. Finally, during the events of Doctor Strange 2, Wanda was 30 since the film was set in 2024.

In conclusion, while Wanda’s age is not explicitly stated in Captain America: Civil War, we can make an educated estimate based on her backstory and the events of the film. Using the information provided, we can estimate Wanda’s age to be around 25-27 years old.

He woke up in 2011 after being kept in a S.H.I.E.L.D. facility and is believed to have been around 98 years old in Captain America: Civil War, 100 years old in Avengers: Infinity War, and 105 years old in Avengers: Endgame.