you could also calculate your body mass index (BMI), this is your weight in kg, divided by your height in metres squared. 25 or less is normal, 25-30 is overweight, over 30 is obese. if you haven't got a calculator to hand, use http://www.cdc.gov/nccdphp/dnpa/bmi/calc-bmi.htm#English which has an imperial and a metric calculator.