Paper&#x27;s about 0.1mm thick. Therefore 513km of paper contains approximately 5.13 billion sheets.<p>Given that there&#x27;s 11TB of data, that means that each sheet contains about 2360 bytes. (Printing on one side.) That&#x27;s an 80x30 grid. A4 is 210x297mm, so (holding the paper landscape for convenience and assuming a 2cm margin) that makes for 3.5x6.3mm letters. Different encodings give you slightly different sized letters, but it&#x27;s all roughly the same.<p>So I&#x27;d guess around 10 to 11 point.<p>Has this helped?