Angle Converter
Available Conversions
About Angle Units
Angle measurement is fundamental in geometry, trigonometry, navigation, and engineering. Degrees divide a circle into 360 parts, radians provide the SI standard based on π, and gradians offer a decimal-friendly alternative. These conversions are essential for mathematics, surveying, and design.
Degree
Degrees are the most familiar unit for measuring angles, with a full circle divided into 360°. Originating from ancient Babylonian astronomy, degrees remain the standard in geometry, navigation, and everyday life for describing turns and directions.
Radian
The radian is the SI unit for angular measure, defined by the angle subtended at the center of a circle by an arc equal in length to the circle's radius. One full circle equals 2Ï€ radians. Radians are essential in calculus, physics, and advanced mathematics because they simplify many formulas.
Gradian
The gradian divides a full circle into 400 equal parts, making a right angle exactly 100 grad. Developed during the French Revolution as part of the metric system, gradians are used in some surveying and engineering contexts, particularly in parts of Europe.