You have to ask yourself, what else are you agnostic about? You don't go around saying there are probably not pink unicorns hidden somewhere on earth but sense no one can prove they don't exist I will say that they might.

If you want to convert, you'll need to sacrifice a goat to the void. Them's the rules!

Seriously, though, if you don't believe in a God or gods, you can call yourself an atheist if you'd like. It sounds like you're a weak/soft/negative atheist (where you have no belief, but you don't assert that no God or gods exist), as opposed to a strong/hard/positive atheist who claims no God or gods exist. I wouldn't get hung up on the labels, but it can be helpful as shorthand when talking with other nontheists. (I tend to be careful calling myself an atheist of any stripe when talking with a believer just because they tend to bring so much baggage of their own to the term and too often stop listening to anything else I have to say after they hear that word.)

I reckon you'll find your own way, the conversion thing comes from religion if you get my drift. To be an Atheist is simply an non belief, and with me it's rooted deep in my brain, I never got any of the God thing even when my age was in single digits . I remember being in Sunday School with my mate Richard Dawkins ,I remember saying to him "Don't you think this Jesus dude is a real Dudly do right ?" He replied " I only seek the truth and God is a delusion !" and Christopher Hitchins said " God is not great" and then lit a cigarette , we where only 6 years old ..LOL

It can be a gradual process or occasionally some facts jel into you making the decision. I rate myself as 99.9% - although my mind says a god is impossible......

read then read some more and then don't stop reading . all the sciences , dawkins , hitchins and harris . then you will come to a conclusion no conversion neeeded

Follow your heart and don't lable youself.

It is not a matter of converting. It is a simple matter to deciding that you are certain that you do not believe in any god or religion.When you decide that, you are an atheist.

When de-converting from christianity the initial decision would not necessarily be to "fully convert to atheism", but rather to change your lifestyle. Meaning, that you make a decision to live your life as if there is no god or at least that the Bible is a worthless document with respects to life and practice. After living life the way you want to for some time you won't need to "decide" to become an atheist, you will realize you are one...

Check out Fighting God by David Silverman (president of American Atheists)

It isn't a matter of Religion or Atheism. Religion is history for us and has nothing whatsoever to do with an interpretation of the Cosmos. You are free to think and feel and come up with your very own ideas. Just open up and think and live. Deciding on any particular belief with a name only limits you. It makes is easy. Well, it is easy to just live and keep open to what comes to you. Just catch it.

Possible to be both. I've copied this from a previous comment I made on another post:

It's a video comment of a YouTuber fan, Rationality Rules, to David Mitchell (a well known Comedian) who claims to be Agnostic but not Atheist. Mitchell explains that it is more rational to be Agnostic because we could never know for certain.

Rationality Rules, explains that: "...Theism and Atheism address what you believe. Gnosticism and Agnosticism address what you assert to know...."

He makes an example addressing Mitchell directly: "...If I ask you if you believe in a god, and your answer is 'no', then you're an Atheist. And if you answered 'I don't know', then you haven't answered the question. Either you believe or do not believe. That is, either you're a theist or an atheist. And how certain you are in your belief, that is: how Gnostic or Agnostic you are, is a completely different question. And so since you don't believe in a god or gods, you are an Atheist..."

Jump to 4m 25s of this video.

I can be any of these:
a: a non-believer because there's no proof yet of existence of a god - an Agnostic Atheist
b: a non-believer because I know there's no proof - a Gnostic Atheist
c: a believer because there's no proof yet of non-existence of a god - an Agnostic Theist
d: a believer because I know there's proof of a god. (I hear his voice every morning.) - a Gnostic Theist

Theism/atheism is an answer to "Do you believe?" And Gnosticism/Agnosticism is an answer to "How certain are you of that belief?"