Astronomy SizeEarth Diameters to Earth Radii

Earth Diameters to Earth Radii

Methodology·How We Verify

Snapshot

1 Earth Diameter equals 2 Earth Radii.

Reference basis: This conversion uses fixed astronomy size constants anchored to meters.
Example: For 2 Earth Diameters, the result equals 4 Earth Radii.

Interactive conversion

Converter Calculator

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

2 Earth Radii (R_earth)

Switch

API and AI agent access

Earth Diameters to Earth Radii.

Machine-readable identifiers

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

Essential response

{
  "ok": true,
  "conversion": {
    "family": "astronomy-size",
    "value": 1,
    "from": "earth_diameters",
    "to": "earth_radii",
    "result": {
      "raw": 2,
      "display": "2"
    },
    "canonicalPath": "/astronomy-size/earth-diameters-to-earth-radii/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Earth Diameters convert into earth radii using fixed astronomy size constants anchored to meters. Formula: R_earth = D_earth × 2. 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 Earth Diameter = 2 Earth Radii.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Earth Diameters (D_earth)	Earth Radii (R_earth)
1	2
2	4
5	10
10	20
100	200
1000	2,000

Questions & answers

Frequently Asked Questions

What is 1 earth diameter in earth radii?

1 Earth Diameter equals 2 Earth Radii on this page.

What fixed planetary size constants define Earth Diameters to Earth Radii?

Both units are planetary reference scales tied to fixed meter constants, so this page keeps one deterministic Earth/Jupiter-style size ratio throughout the route.

When would I convert earth diameters to earth radii?

This route is useful when comparing planetary reference scales such as Earth and Jupiter sizes in astronomy education, exoplanet discussion, and object-size summaries.

How do I reverse Earth Diameters to Earth Radii?

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