How long does a personal statement have to be? The field personal statement outline for about 4000 typed characters, including spaces.
A typical length for a PS is between 450 and 550 words. It is usually better to think in terms of paragraphs rather than word count. A good PS has about five paragraphs. See the post on this blog on outlining a PS for suggestions on how to organise your paragraphs. But the vast majority of PSs are now sent online. Use 12 point and Times New Roman font. Use of colour and highlighting devices like bold and underlining are not encouraged.