Astronomy SizeKilometers to Solar Radii

Kilometers to Solar Radii

Methodology·How We Verify

Snapshot

1 Kilometer equals 0.000001 Solar Radii.

Reference basis: This conversion uses fixed astronomy size constants anchored to meters.
Example: For 2 Kilometers, the result equals 0.000003 Solar Radii.

Interactive conversion

Converter Calculator

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

0.000001 Solar Radii (R_sun)

Switch

API and AI agent access

Kilometers to Solar Radii.

Machine-readable identifiers

Conversion family: astronomy-size
Source unit: kilometers
Target unit: solar_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": "kilometers",
  "to": "solar_radii"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "astronomy-size",
    "value": 1,
    "from": "kilometers",
    "to": "solar_radii",
    "result": {
      "raw": 0.00000143740117867,
      "display": "0.000001"
    },
    "canonicalPath": "/astronomy-size/kilometers-to-solar-radii/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Kilometers convert into solar radii using fixed astronomy size constants anchored to meters. Formula: R_sun = km × 0.00000143740117867. 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 Kilometer = 0.000001 Solar Radii.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Kilometers (km)	Solar Radii (R_sun)
1	0.000001
2	0.000003
5	0.000007
10	0.000014
100	0.000144
1000	0.001437

Questions & answers

Frequently Asked Questions

What is 1 kilometer in solar radii?

1 Kilometer equals 0.000001 Solar Radii on this page.

Does this Kilometers to Solar 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 kilometers to solar 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 Kilometers to Solar Radii?

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