how long does it take for the sun to orbit the milky way

It takes the Sun about 225–250 million years to complete one full orbit around the center of the Milky Way, a span often called a “galactic” or “cosmic year.”

Quick Scoop

• The Sun orbits the Milky Way’s center at roughly 448,000–500,000 miles per hour (about 720,000–800,000 km/h).

• Even at that speed , one full loop around the galaxy takes roughly 225–250 million Earth years.

• Many sources give a typical figure of around 230 million years as a handy average.

• The Sun is about 4.6 billion years old, so it has made on the order of 20 or so orbits around the Milky Way so far.

Why It Takes So Long

The Milky Way is enormous: the Sun sits roughly 25,000–30,000 light‑years from the galactic center, so its orbital path is huge.

At that distance, the Sun’s high orbital speed still translates into a galactic “year” hundreds of millions of Earth years long.

Astronomers refine these numbers using measurements of the Sun’s speed and distance plus models of the galaxy’s mass and structure, which is why you often see a range (225–250 million years) rather than a single exact value.

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