radians to arcminutes | Exact Decimal + Formula
One radian equals about 3.4 thousand arcminutes (exactly 3437.746771 arcmin). Real-world use: calculus, physics, and programming trigonometry functions. This page expresses those values in arcminutes, which is used for astronomy (apparent sizes), optics, and navigation. Use the calculator above, then check the reference table for common values from 0.001 to 1000.
About Radian and Arcminute
Radian (rad)
A radian is the angle subtended by an arc equal to the circle's radius; a full circle is 2π radians.
Where it's used: Calculus, physics, and programming trigonometry functions.
Arcminute (arcmin)
An arcminute is 1/60 of a degree.
Where it's used: Astronomy (apparent sizes), optics, and navigation.
Angle Converter
Formula
arcmin = rad × 3437.746770785
To convert Radian to Arcminute, use the formula displayed above.
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Radian to Arcminute: Quick Reference Table
| Radian | Arcminute (Decimal) | Fraction |
|---|---|---|
| 0.001 rad | 3.437747 arcmin | - |
| 0.01 rad | 34.377468 arcmin | - |
| 0.1 rad | 343.774677 arcmin | - |
| 0.5 rad | 1718.873385 arcmin | - |
| 1 rad | 3437.746771 arcmin | - |
| 2 rad | 6875.493542 arcmin | - |
| 5 rad | 17188.733854 arcmin | - |
| 10 rad | 34377.467708 arcmin | - |
| 25 rad | 85943.66927 arcmin | - |
| 50 rad | 171887.338539 arcmin | - |
| 100 rad | 343774.677078 arcmin | - |
| 250 rad | 859436.692696 arcmin | - |
| 500 rad | 1718873.385392 arcmin | - |
| 1000 rad | 3437746.770785 arcmin | - |
rad to arcmin Formula and Examples
arcmin = rad × 3437.746770785 rad = arcmin × 0.000291 Multiply the value by roughly 3437.7 to calculate the equivalent amount in your head.
Common Radian to Arcminute Calculations
- 5 rad = 17188.733854 arcmin
- 10 rad = 34377.467708 arcmin
- 50 rad = 171887.338539 arcmin
- 100 rad = 343774.677078 arcmin
- 500 rad = 1718873.385392 arcmin
Precision & Practical Use
For example, 10 rad = 34377.467708 arcmin — roughly multiple unit increments.
Results are computed to up to 9 decimal places. Round to the precision of your measuring instrument — for most angle applications, 2–3 significant figures are plenty.