Beyond fall risk, balance also reveals a great deal about our overall health. Below, experts share how long you should be able to balance and what you can do to improve it:How long you should be able to balance on one leg varies, but at least 10 or 15 seconds is the minimum. The exact amount of time you can balance on one leg depends on several factors, including age and health conditions. “The younger you are, the longer you should be able to balance on one leg,” added Wooldridge. Being able to balance could mean “staying independent, staying strong, staying out of the hospital, staying in your own home.