How big is the Sun compared to Earth?
1.3 millionEarths fit inside
The Sun is 109 times wider than Earth — 1,392,700 km against 12,742 km. Because volume scales with the cube of width, about 1.3 million Earths would fit inside it.
▶ See the true size in 3D
A scale model you can hold in your head
Shrink the Sun to a grapefruit about 14 cm wide. On that scale, Earth is a grain of sand just over a millimetre across — sitting 15 metres away. Jupiter is a 14 mm marble at 78 metres. Neptune is a 5 mm pea nearly half a kilometre from the grapefruit. And the next grapefruit — the nearest star — is roughly 4,000 km away.
Almost every picture of the solar system you've ever seen lies about this, because it has to: draw the Sun and Earth at their true relative sizes and distance on one page, and Earth is invisible. That's exactly what the interactive view's 1:1 mode shows — honestly.
The Sun loses four million tonnes of itself every second, converted to light. It has been doing that for 4.6 billion years — and has burned through only about 0.03% of its mass.
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✓ Facts verified July 2026
Every figure on this page is a real, rounded value checked against primary sources. Found something out of date? See how we keep it accurate.