how far away is earth from the sun

Earth is, on average, about 150 million kilometers (around 93 million miles) away from the Sun, a distance called one astronomical unit (1 AU).

Quick Scoop

• Average distance: about 149.6 million km (≈93 million miles).

• This average distance is defined as 1 Astronomical Unit (AU).

• Light from the Sun takes about 8 minutes 20 seconds to reach Earth at this distance.

Does the Distance Change?

Earth’s path around the Sun is slightly elliptical, not a perfect circle, so the distance is not always the same.

• Closest point (perihelion): about 147.1 million km (≈91.4 million miles).

• Farthest point (aphelion): about 152.1 million km (≈94.5 million miles).

• The “how far away is Earth from the Sun” number is this varying distance averaged over the year.

A Tiny Bit of Story

Astronomers historically treated this Earth–Sun distance as a fundamental yardstick for the Solar System, eventually formalizing it as the Astronomical Unit.

Careful measurements of planetary motions and events like Venus transits helped pin down the modern AU value of 149,597,870,700 meters.

TL;DR: Earth is about 150 million km (93 million miles) from the Sun on average, but that distance gently swings a few million kilometers closer or farther over the year.

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