Angle Unit Converter
Easily convert between different angle units.
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Frequently Asked Questions
What are angle units?
Angle units are ways to measure the size of an angle or the amount of rotation. Common units include degrees, radians, and revolutions.
Why are there different angle units?
Different angle units are used in various fields. For example, radians are common in mathematics and physics, while degrees are widely used in everyday life, navigation, and engineering.
What is a radian?
A radian is an angle unit based on the radius of a circle. One radian is the angle subtended at the center of a circle by an arc equal in length to the radius. 2π radians make a full circle.
How many degrees are in a full circle (revolution)?
A full circle or one revolution is equal to 360 degrees (360°).
What are arcminutes and arcseconds?
Arcminutes (′) and arcseconds (″) are subdivisions of a degree used for precise angular measurements. One degree equals 60 arcminutes, and one arcminute equals 60 arcseconds.
When are radians preferred over degrees?
Radians are often preferred in calculus and physics because they simplify many formulas, especially those involving trigonometric functions and their derivatives, by eliminating conversion factors.
What is a gradian (gon)?
A gradian, also known as a gon or grade, is an angular unit where a right angle is 100 gradians. Therefore, a full circle is 400 gradians. It's mainly used in some surveying and engineering contexts.