The number of push-ups one should be able to do depends largely on age, sex, and fitness level. For a healthy 25-year-old male, about 28 push-ups in one go is a good target, while for females around 20 push-ups is a solid benchmark. These numbers gradually decline with age. For example, by age 45, men might aim for around 16 push-ups and women for about 14. By age 65, a target of 10 push-ups for both genders is common. Generally, being able to do 20 to 25 consecutive push-ups is considered a good fitness level for most adults. Many adults struggle to do more than 10 push-ups in a row, so these targets can vary widely depending on individual health and training.