Angle
Browse Angle conversions1 arcsecond = 0.000005 radian
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Formula Summary
Result: 1 arcsecond = 0.000005 radian
Formula: (1 x 0.000277777778) / 57.295779513082
Rounding: Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
Real World Context
0.000005 radian is approximately:
- spans about 4.85 millimeters at 1 kilometer
Unit Story
Arcsecond
An arcsecond is one sixtieth of an arcminute. Astronomers use arcseconds for very small apparent separations in the sky.
Radian
A radian links an angle directly to a circle: the arc length equals the radius. That natural relationship makes radians central to mathematics and engineering.
How This Conversion Works
Arcsecond and radian are both used for angle conversions. This page converts 1 arcsecond into 0.000005 radian using the formula shown below.
Use this result for quick checks, comparisons, and everyday reference. For work that depends on exact precision, review the rounding setting and the assumption note before using the number.
The precision controls let you switch between a shorter result, the standard readable result, and scientific notation when the value is very large or very small.
Unit Notes
- 1 arcsecond (arcsec) equals 0.0002777778 degree.
- 1 radian (rad) equals 57.2957795131 degree.
Questions
How do you convert arcsecond to radian?
This page converts arcsecond to radian using this formula: (1 x 0.000277777778) / 57.295779513082.
What is 1 arcsecond in radian?
1 arcsecond equals 0.000005 radian.
How many decimals does this converter show?
Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision. The precision buttons can also show a shorter result or scientific notation.
Equivalent Values
Nearby Values
Full Details
- Formula
- (1 x 0.000277777778) / 57.295779513082
- Rounding
- Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
- Assumption
- Angle conversions use one full turn = 360 degrees = 2 pi radians = 400 gradians. A NATO mil is 1/6400 of a full turn.
