Astronomy SizeAstronomical Units to Earth Radii

Astronomical Units to Earth Radii

Methodology·How We Verify

Snapshot

1 Astronomical Unit equals 23,481.033443 Earth Radii.

Reference basis: This conversion uses fixed astronomy size constants anchored to meters.
Example: For 2 Astronomical Units, the result equals 46,962.066886 Earth Radii.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

23,481.033443 Earth Radii (R_earth)

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API and AI agent access

Astronomical Units to Earth Radii.

Machine-readable identifiers

Conversion family: astronomy-size
Source unit: astronomical_units
Target unit: earth_radii

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "astronomy-size",
  "value": 1,
  "from": "astronomical_units",
  "to": "earth_radii"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "astronomy-size",
    "value": 1,
    "from": "astronomical_units",
    "to": "earth_radii",
    "result": {
      "raw": 23481.0334432,
      "display": "23,481.033443"
    },
    "canonicalPath": "/astronomy-size/astronomical-units-to-earth-radii/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Astronomical Units convert into earth radii using fixed astronomy size constants anchored to meters. Formula: R_earth = AU × 23481.0334432. That keeps the snapshot, calculator, table, and mirror page aligned on one constant basis.

It is useful for comparing planetary, stellar, and orbital-scale size references without switching between inconsistent reference tables.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Astronomical Unit = 23,481.033443 Earth Radii.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Astronomical Units (AU)	Earth Radii (R_earth)
1	23,481.033443
2	46,962.066886
5	117,405.167216
10	234,810.334432
100	2,348,103.34432
1000	23,481,033.4432

Questions & answers

Frequently Asked Questions

What is 1 astronomical unit in earth radii?

1 Astronomical Unit equals 23,481.033443 Earth Radii on this page.

Does this Astronomical Units to Earth Radii page convert through meters first?

Yes. Standard metric units act as the shared size basis, and the astronomy reference unit is then applied through its fixed meter constant.

When would I convert astronomical units to earth radii?

This route is useful when expressing planetary or stellar size references in metric units, or restating metric sizes in familiar astronomy reference scales.

How do I reverse Astronomical Units to Earth Radii?

Use the mirror Earth Radii to Astronomical Units route; it reverses the same astronomy size constants without changing the underlying assumptions.