Astronomy SizeSolar Radii to Earth Radii

Solar Radii to Earth Radii

Methodology·How We Verify

Snapshot

1 Solar Radius equals 109.197777 Earth Radii.

Reference basis: This conversion uses fixed astronomy size constants anchored to meters.
Example: For 2 Solar Radii, the result equals 218.395555 Earth Radii.

Interactive conversion

Converter Calculator

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

109.197777 Earth Radii (R_earth)

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API and AI agent access

Solar Radii to Earth Radii.

Machine-readable identifiers

Conversion family: astronomy-size
Source unit: solar_radii
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": "solar_radii",
  "to": "earth_radii"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "astronomy-size",
    "value": 1,
    "from": "solar_radii",
    "to": "earth_radii",
    "result": {
      "raw": 109.197777281,
      "display": "109.197777"
    },
    "canonicalPath": "/astronomy-size/solar-radii-to-earth-radii/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Solar Radii convert into earth radii using fixed astronomy size constants anchored to meters. Formula: R_earth = R_sun × 109.197777281. 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 Solar Radius = 109.197777 Earth Radii.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Solar Radii (R_sun)	Earth Radii (R_earth)
1	109.197777
2	218.395555
5	545.988886
10	1,091.977773
100	10,919.777728
1000	109,197.777281

Questions & answers

Frequently Asked Questions

What is 1 solar radius in earth radii?

1 Solar Radius equals 109.197777 Earth Radii on this page.

Does this Solar Radii to Earth Radii page use fixed solar reference constants?

Yes. Where solar radii or diameters appear, this page uses fixed solar reference constants normalized through meters before applying the target unit.

When would I convert solar radii to earth radii?

This route is useful when translating between stellar size references and other astronomy scales so star-size comparisons stay on the intended unit basis.

How do I reverse Solar Radii to Earth Radii?

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