What are the generations of family members?

(1st Generation) Grandfather Grandmother Grandfather Grandmother

(2nd Generation) Father Mother

(3rd Generation) You

Among human families, one generation is the time between the birth of a child and the birth of that child's child. Although that amount of time is different fro different people, families, cultures and regions, it has traditionally been set as about 25 years. That makes three generations about 75 years.

In more recent times in Western countries, with people having fewer children later in live, some have suggested that one generation should be considered to be 33 years. Then three generations would be about 100 years.

In some contexts, one generation is sometimes considered to be roughly synonymous with one lifetime.