About 1.3 million Earths could fit inside the Sun by volume if you ignore gaps between them.

Quick Scoop 🌍☀️

  • By volume, the Sun is about 1,300,000 times the size of Earth.
  • That’s why people often say “around 1.3 million Earths can fit in the Sun.”
  • But if you try to pack Earth-like spheres inside a Sun-sized sphere (and account for empty space between them), the number drops to about 950,000–1,000,000 Earths in more realistic estimates.
  • Across the Sun’s diameter , you could line up about 109 Earths side by side.

Tiny Earth vs Giant Sun

Think of Earth as a small marble and the Sun as a giant glowing ball many times bigger. The Sun’s radius is about 109 times Earth’s radius, which is why its volume ends up about 1.3 million times larger (volume scales with the cube of size).

So when someone asks “how many Earth can fit in Sun,” they usually mean:

If you could fill the inside of the Sun with Earth-sized balls,
you’d get around 1.3 million Earths (ignoring gaps).

The “Gaps Between Earths” Detail

In real life, if you pack spheres together (like stacking oranges), you can’t use 100% of the space. At best, you fill about 74% of the total volume.

  • Using that realistic packing:
    • Ideal math (no gaps): ≈ 1,300,000 Earths.
* With packing gaps: closer to **950,000–1,000,000 whole Earths**.

Most popular answers go with the 1.3 million figure because it’s simple and comes from a clean volume ratio.

Fun extra facts

  • The Sun is about 333,000 times more massive than Earth.
  • Earth could line up roughly 109 times across the face of the Sun.

TL;DR:

  • Simple answer: About 1.3 million Earths can fit inside the Sun (by volume).
  • More realistic packing: just under 1 million whole Earths.

Information gathered from public forums or data available on the internet and portrayed here.