What is the proper weight for a 56 year old 5'5 woman?

any thing between 53 and 65. to calculate the approximate, normal weight for any person, convert her/his height in centimeters and subtract 100 from the total. you get the aprox. weight. for example for a person with height 5.9",
height in cm= 5.9*12*2.5
= 177
therefore normal weight is upto:177-100= 77kg.