To convert radians to arcseconds, multiply by 206264.8062.
The calculation uses 1 rad = 206264.8062 ″. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in ″ = value in rad × 206264.8062
rad- Input unit: radians
″- Output unit: arcseconds
How to use this calculator
- Enter a value in rad.
- Multiply by the stored conversion factor.
- Read the result in ″; divide by the same factor to convert back.
Worked examples
Worked conversion
1 rad × 206264.8062 ≈ 206264.8062 ″.
Reverse conversion
206264.8062 ″ ÷ 206264.8062 ≈ 1 rad. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 206264.8062 ″ per rad.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
rad to ″ table
| rad | ″ (rounded) |
|---|---|
| 0 | 0 |
| 1 | 206264.8062 |
| 2 | 412529.6125 |
| 5 | 1031324.031 |
| 10 | 2062648.062 |
| 100 | 20626480.62 |
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