Earth to Sun (1 AU)

Value: 149,597,870.7 km

About 93 million miles.

Category

Astronomy

Background, relevance, and practical use

Earth to Sun (1 AU) is typically listed as 149,597,870.7 km. About 93 million miles. This is most useful as a reference point rather than a one-size-fits-all answer: it helps you quickly sanity-check numbers and avoid unit or magnitude mistakes.

In practice, this constant is used to describe scale in the solar system and beyond. A good workflow is to start with this baseline, then adjust for context (measurement method, precision needs, and real-world conditions). That gives you speed without sacrificing accuracy.

If you need high precision, verify the source standard and units before final calculations. For most day-to-day use, this value is reliable for estimation, explanation, and quick comparisons.

FAQ

What is Earth to Sun (1 AU)?

Earth to Sun (1 AU) is typically listed as 149,597,870.7 km.

Where is this constant used?

About 93 million miles.

Back to Astronomy constants