How much age difference can you tolerate?

Eh... preferable a girl who knows hat she wants. usually that doesnt come till like the age of 24, the lowest id go at this point is 21, and the highest probably like 35. that being said there are exceptions for older people, seldom younger, 18 is legal but unless youre a mature 18, probably not :/

my bf is 5/6 years older than me depending the time of year, and i dont mind id probz go as high as 33 but i wouldnt go below 20 not into younger guys

It really depends on the person. Ideally as long as I'm getting my needs met age shouldn't really be a factor. Of course in practice the bigger the gap the harder it is for those needs to get met.