Astronomy DistanceAstronomical Units to Kilometers

Astronomical Units to Kilometers

Methodology·How We Verify

Snapshot

1 Astronomical Unit equals 149,597,870.7 Kilometers.

Reference basis: This conversion uses a fixed factor based on canonical reference constants.
Example: For 2 Astronomical Units, the result equals 299,195,741.4 Kilometers.

Interactive conversion

Converter Calculator

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

149,597,870.7 Kilometers (km)

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API and AI agent access

Astronomical Units to Kilometers.

Machine-readable identifiers

Conversion family: astronomy-distance
Source unit: astronomical_units
Target unit: kilometers

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-distance",
  "value": 1,
  "from": "astronomical_units",
  "to": "kilometers"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "astronomy-distance",
    "value": 1,
    "from": "astronomical_units",
    "to": "kilometers",
    "result": {
      "raw": 149597870.7,
      "display": "149,597,870.7"
    },
    "canonicalPath": "/astronomy-distance/astronomical-units-to-kilometers/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Astronomical Units convert into kilometers by reducing both units to meters and applying one fixed astronomy distance ratio.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Astronomical Unit = 149,597,870.7 Kilometers.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Astronomical Units (AU)	Kilometers (km)
1	149,597,870.7
2	299,195,741.4
5	747,989,353.5
10	1,495,978,707
100	14,959,787,070
1000	149,597,870,700

Questions & answers

Frequently Asked Questions

How is Astronomical Units to Kilometers calculated?

The factor is derived by reducing both units to meters and applying the fixed astronomy reference constants for AU, light-seconds, or lunar-distance scales.

How do I reverse Astronomical Units to Kilometers?

Use the mirror Kilometers to Astronomical Units route; it applies the inverse relationship for the opposite direction with the same assumptions.