In modern science, the Earth is an oblate spheroid: almost a sphere but slightly flattened at the poles due to its rotation. Its equatorial diameter is about 12,756 km, while its polar diameter is about 12,714 km, so it is a bit wider at the equator than from pole to pole. If you’d like, I can also share how Jain cosmology describes the earth (Prithvi) and other lokas in a broader cultural context.