what size is the sun

The Sun’s diameter is about 1.39–1.4 million kilometers (around 864,000–870,000 miles).

Quick Scoop: How big is the Sun?

• Diameter: about 1.39 million km (864,000+ miles).

• Radius: about 696,000–700,000 km from center to “surface.”

• Compared to Earth: roughly 109 times wider than Earth.

• Volume: you could fit about 1.3 million Earths inside it.

A simple way to picture it

Imagine Earth shrunk to the size of a small marble. At that scale, the Sun would be a sphere over a meter across, more like a big exercise ball towering over that tiny marble.

Even though it looks like a bright coin in the sky, the Sun is a giant ball of hot plasma that holds 99.86% of all the mass in the solar system.

TL;DR: When someone asks “what size is the Sun,” the usual answer is: about 1.39 million km across, or 109 Earths side by side.

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