Bill Gates Net Worth. William Henry Gates well known as Bill Gate is a 62 years old American business man and billionaire, globally known as the co- founder of the world biggest PC software company ‘Microsoft’. He was noticed as one of the richest people in the world in 1987 and today he ranked the wealthiest man in the world title. Bill Gate is among the few philanthropist in the world today and some times in 2009, him and the second richest man on earth ‘’ Warren Buffett’’ and Mark Zuckerberg the owner of the world number one social network (Facebook) ,collaborated in opening a charity organization know as (The Giving Pledge) and wow to give out all most half of all they have got. What a golden heart and no wonder these two men are always at the top of the list of world richest every year. Givers never lack indeed and Bill Gate happens to be one. His net worth is about $90.5 billion currently and still counting.