Tool to convert angles unit. Geometric angles can be described using different units (degrees, radian, degrees minutes and seconds, etc.)
Convert Angle Units - dCode
Tag(s) : Geometry
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
The measure of an angle (or an angular sector) is a number (real and positive number) that can be displayed in several units: generally the radian or the degree.
A full turn is $ 2 \pi $ radians or $ 360 $ degrees.
Conversion of degrees to radians uses the angular formula:
$$ \mbox{ Rad} = \mbox{ Deg} \times \pi / 180 $$
To remember it, keep in mind that the Radians measure a circle over $ 2 \pi $ while the degrees measure a circle over $ 360 ° $. The relationship between the two angles is $ \frac{2\pi}{360}=\frac{\pi}{180} $.
Example: $$ 90° \times \pi / 180 = \frac{\pi}{2} \mbox{ Rad} $$
Conversion of degrees to gradians uses the formula:
$$ Grad = Deg / 360 \times 400 $$
Example: $$ 90° / 360 \times 400 = 100 \mbox{ Grad} $$
Converting from degrees to arc seconds:
$$ Deg = D + M/60 + S/3600 $$
Example: 1′ (arcminute) = 1°/60 = 0.0166°
Example: 1″ (arcsecond) = 1°/3600 = 0.000277°
Conversion of radians to degrees uses the formula:
$$ Deg = Rad \times 180 / \pi $$
Example: $$ \frac{\pi}{2} \times \frac{180}{\pi} = 90° $$
Conversion of gradians to degrees uses the formula:
$$ Deg = Grad / 400 \times 360 $$
The relationships between these angle subunits are as follows:
— 1 degree = 60 arc minutes
— 1 arc minute = 60 arc seconds
— 1 degree = 3600 arc seconds
dCode retains ownership of the "Convert Angle Units" source code. Any algorithm for the "Convert Angle Units" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Convert Angle Units" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Convert Angle Units" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.
The content of the page "Convert Angle Units" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source.
Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
To cite dCode.fr on another website, use the link:
In a scientific article or book, the recommended bibliographic citation is: Convert Angle Units on dCode.fr [online website], retrieved on 2025-04-16,