Definition

It expresses the ratio, in a population or an age group, of the male to the female workforce. Also called the masculinity rate, it is expressed as the number of men for 1 woman.

A value less than 1 indicates that women outnumber men. Conversely, a value greater than 1 indicates that there are more men than women.

Formula

Sex-ratio = Number of men / number of women

Example

Number of men: 14
Number of women: 15

Sex ratio: 14/15 = 0.93
So the sex ratio, or masculinity ratio, is 0.93 man for 1 woman.