brahmāṇḍa-pramāṇa - measurement of the universe; pañcāśat - fifty; koṭi - ten millions; yojana - lengths of eight miles; āyāma - length; vistāra - breadth; dui - both of them; haya - are; eka sama - one and the same.

The universe measures five hundred million yojanas. Its length and breadth are one and the same.