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Earth vs Sun Size Comparison

The Sun is about 109 times wider than an earth: 865,000 miles (1,393,000 km) against 7,920 miles (12,740 km). By volume, about 1.31 million earths would fit inside the Sun.

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Which is bigger, an earth or the Sun?

The Sun is bigger. The Sun is 109× the size of an earth: about 109 earths lined up would match it.

Measure	Earth	Sun
Size	7,920 miles (12,740 km) across	865,000 miles (1,393,000 km) across
Record size	—	—
Weight	—	—
Volume	≈ 1.1 × 10²¹ m³	≈ 1.4 × 10²⁷ m³

How many earths fit in the Sun?

By volume, about 1.31 million earths would fit inside the Sun. The Sun is 109× the size of an earth: about 109 earths lined up would match it. Volume grows with the cube of length, which is why the volume number is so much bigger.

Where do these numbers come from?

Sizes are typical adult or reported values, rounded for readability. Read how we measure and compare sizes.