If I am 30 years old how much am i suppose to weigh when my height is 5'6?

if your height is5'6 then in centimetres it is 168cm then you can weigh up to 68kg which is the correct weight for your height.Its actually if u subtract 100 from your height in cm's your appropriate weight can be given.According to me how much ever we weigh as long as we are physically fit (that doesn't always mean being slim) there will be no health problems