All things · Countries & Worlds

Earth: how big is it?

Earth is about 12,700 km. In everyday terms, that is ≈ 1,440 Mount Everests.

Size

12,700 km

In metres

1.27 × 10⁷ m

Everyday comparison

≈ 1,440 Mount Everests

Chapter

Countries & Worlds

Did you know?

Our home. Light could travel around it about 7.5 times in a single second.

How it compares

• About 1.9× bigger than Mars (6,780 km).
• About 3.9× smaller than Neptune (49,200 km).

Other things of a similar size

• Pluto 2,380 km
• River Ganga 2,530 km
• India (north to south) 3,210 km
• The Moon 3,470 km
• Mars 6,780 km
• Neptune 49,200 km

Sizes are rounded, typical values drawn from standard reference sources, including NIST/CODATA physical constants and NASA's planetary fact sheets. Real objects vary; see About for how sizes are chosen.