SB 5.20.38

Learned scholars have thus described the locations of the planets, their particular symptoms, measurements and shapes. The distance between Sumeru and the end of Lokāloka is one fourth of the diameter of the universe, or 41,100,000 yojanas. Lokāloka’s distance from Meru is one quarter of the measurement of universal shell (bhū-golasya). Since the earth like sun is (approximately) situated in the center of the upper and lower halves of the universe, like the heavens (distance from the sun to the edge of the universe), the earth globe also is 500,000,000 yojanas in diameter to the edges of the universe. [Note: The word bhūgola is used here, though it seems to refer to bhū-maṇḍala.] A quarter of that is 125,000,000 yojanas. That is the extent (radius) of the raised area of Lokālokā. (The real meaning however is different.) However, the earth surface is 493,400,000 yojanas across (according to the dimensions given in this chapter). From the middle of Meru to the middle of Mānasottara is 15,750,000 yojanas. From the middle of Mānasottara to the other shore of fresh water ocean is 9,600,000 yojanas. The golden land measures 15,750,000 yojanas. The total measurement from the middle of Meru to the Lokāloka Mountain is then 41,100,000 yojanas. The distance from Lokāloka to the end Lokāloka is 82,200,000 yojanas. This dimension is mentioned in verse 42 with the words yo ‘ntar-vistāraḥ and yad bahir lokālokācalāt. (Total is 123,300,000 yojanas from Meru to end of Lokāloka. That is the meaning of the verse.) The distance outside of Lokāloka is the same. And the distance is the same on the other side of Meru as well. Thus it is said that 125,000,000 yojanas (approximately) is the measurement from Meru to the end of Lokāloka. It is the same measurement on the other side. Bhūloka is 493,400,000 [Note: 493,200,000 according to my calculation. ] yojanas with the oceans, islands and mountains. There is thus a space of 1,700,000 yojanas from the universal shell all around. Because of this Śeṣa holds up the earth and the elephants of the directions steady it. [Note: If the maṇḍala touched the edges of the shell of the universe, it would not move downwards at all. ] To explain the dimensions in any other way would make the descriptions mentioned here useless, since it has been mentioned that the diameter to the shell of the universe is 500,000,000 yojanas. It would also be impossible for Vāraha to lift up the earth (bhū-maṇḍala) which has sunk in the Garbodhaka Ocean during Cākṣuṣa Manvantara, if bhpu-maṇḍala was 500,000,000 yojanas in diameter.