calcule how much a can get at the age of 62

Are you referring to Social Security? A Reverse Mortgage? Some other income source?

You can request a statement from the Social Security Administration at this link:
http://www.ssa.gov/mystatement/

However, I would strongly encourage you to consider the benefits of working until your maximum retirement age. Learn more about the benefits of delaying Social Security here:
http://www.newretirement.com/Services/Social-Security-Benefits.aspx

If you would like more information about the many benefits of working when you are of retirement age, continue here: http://www.newretirement.com/Services/Working_In_Retirement_Reasons.aspx