Solar Radii to Astronomical Units
Snapshot
1 Solar Radius equals 0.004650467261 Astronomical Units. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.
- Reference basis: This conversion uses a fixed factor based on canonical reference constants.
- Example: For 10 Solar Radii, the result equals 0.046504673 Astronomical Units.
- Use the reverse page if you need the opposite direction with the same basis.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Interactive conversion
Converter Calculator
0.004650467261 Astronomical Units (AU)
SwitchMachine access
Available to apps and AI agents
Solar Radii to Astronomical Units can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The identifiers below select the same calculation as the calculator.
Machine-readable identifiers
- Conversion family
astronomy-distance- Source unit
solar_radii- Target unit
astronomical_units
The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.
Example API request and response
POST /api/v1/convertRequest
{
"family": "astronomy-distance",
"value": 1,
"from": "solar_radii",
"to": "astronomical_units"
}Essential response
{
"ok": true,
"conversion": {
"family": "astronomy-distance",
"value": 1,
"from": "solar_radii",
"to": "astronomical_units",
"result": {
"raw": 0.00465046726096,
"display": "0.004650467261"
},
"canonicalPath": "/astronomy-distance/solar-radii-to-astronomical-units/"
}
}Explanation
This is the reverse side of the AU-to-solar-radii conversion. It answers the astronomy distance question directly: 1 solar radius is about 0.004650467261 astronomical units on this page.
That is useful when you want to express stellar size in orbital-distance units for comparison or quick reference work. The page uses the same fixed meter-based constants as the mirror page, only reversed, so both directions stay aligned.
Common Conversion Values
| Solar Radii (R_sun) | Astronomical Units (AU) |
|---|---|
| 1 | 0.004650467261 |
| 10 | 0.046504673 |
| 100 | 0.465046726 |
| 215.025 | 0.999966723 |
| 500 | 2.325234 |
| 1,000 | 4.650467 |
Questions & answers
Frequently Asked Questions
How many astronomical units are in 1 solar radius?
1 solar radius is about 0.004650467261 astronomical units on this page.
Is this the reverse of the AU to solar radii page?
Yes. This page uses the same fixed astronomy distance constants as the mirror page, only reversed to estimate astronomical units from solar radii.
Why is 1 solar radius such a small fraction of an AU?
Because an astronomical unit is much larger than the radius of the Sun, so one solar radius is only a small fraction of 1 AU.