- Equatorial diameter: Approximately 12,756 kilometers (7,926 miles)

- Polar diameter: Approximately 12,714 kilometers (7,900 miles)

Earth's Surface Area:

- Total surface area: About 510.1 million square kilometers (196.9 million square miles)

- Land area: Roughly 148.9 million square kilometers (57.5 million square miles)

- Water area: Around 361.2 million square kilometers (139.5 million square miles)

Earth's Volume:

- Estimated volume: Approximately 1.08321 × 10^12 cubic kilometers (2.5988 × 10^17 cubic miles)

These measurements may vary slightly due to factors such as Earth's dynamic geological processes and ongoing research refinements. Earth's size can also be compared to other celestial bodies within our solar system and beyond.