Overview
What Is an Angle Converter?
This tool converts angle measurements between degrees, radians, and gradians, the three common angle units.
Convert between degrees, radians, and gradians.
This tool converts angle measurements between degrees, radians, and gradians, the three common angle units.
Useful for trigonometry, physics, and engineering calculations that use different angle unit conventions.
Input the angle value to convert.
Choose the unit you're converting from and to.
The converted value updates automatically.
2π radians, approximately 6.283 radians.
360 degrees.
400 gradians.
Radians simplify many mathematical formulas, especially in calculus and advanced trigonometry.
Primarily in surveying and some European engineering contexts, though less common than degrees or radians.
Results use standard mathematical conversion factors accurate to several decimal places.
No, calculations happen entirely in your browser.
Yes, negative angle values are fully supported.
Yes, many programming languages' trig functions expect radians, making this conversion practically useful.
Yes, completely free with no sign-up required.