A scale, comprising a body, wherein a supporting panel is disposed on the body; the supporting panel comprises an upper supporting panel and a lower supporting panel that can be folded and unfolded; the lower supporting panel is connected to the body via a rotatable axis disposed on a off-center position of the body, or a pair of slideways. The scale according to the invention is able to safely and effectively measure height and weight in a horizontal state, and the small size thereof is particularly useful in households. The scale is applicable to measuring the weight and height of infants, children, and adults.