Angle Converter

Angle Converter — Convert Degrees, Radians, Gradians & Turns Online

The Angle Converter is a free online tool that converts between every common angular measurement unit: degrees, radians, gradians (gons), turns (revolutions), arcminutes, and arcseconds. Whether you are doing trigonometry homework, programming game physics, navigating with a compass, designing CAD parts, or analyzing astronomical data, this converter handles the math instantly with no formulas to memorize.

Why You Need to Convert Angles

Different fields prefer different angular units. Engineers and architects use degrees (360 in a full circle). Physicists, mathematicians, and most programming libraries use radians (2π in a full circle). Surveyors and some European maps use gradians (400 in a full circle). Astronomers use arcminutes and arcseconds for tiny angular separations. Game developers and rotation systems often use turns or normalized 0-1 values. Mixing units without converting causes calculation errors that can crash physics simulations or misalign machined parts.

How to Use the Converter

Enter your angle value, select the source unit from the drop-down, and choose the target unit. The conversion appears instantly with high precision. The tool also handles negative angles (for counterclockwise rotation), values greater than 360° or 2π (for multiple revolutions), and scientific notation for very small astronomical angles.

Common Use Cases

Game developers convert between degrees and radians for trigonometry. Engineers verify CAD rotation specifications. Astronomers compute object positions in arcseconds. Surveyors translate gradian field notes. Students complete physics, calculus, and engineering homework. The tool is free, instant, mobile-friendly, runs entirely in your browser, and requires no signup. Bookmark it for fast angle conversion anytime.

Tamer Baghdadi

CEO / Co-Founder