Plane Angle Converter is an online unit transformer that supports conversions and calculations between various plane angle units including Circle(circle), Degrees(deg), Arcminutes(′), Arcseconds(″), Gradians(grad), Radians(rad), Milliradian(mrad) and more.

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Distance Calculator

Distance calculator could calculate the distance between two points in the rectangular coordinate system, supports two-dimensional coordinates and three-dimensional coordinates.

Base Converter

Base Converter supports arbitrary conversions between 2 and 36 bases, and also supports floating-point types conversion.

Twin Calculators

Twin Calculators (Twofold Calculators), which combines two calculators into one, and the calculation result can be copied and pasted between the two calculators with one click.

Perimeter Calculator

Perimeter Calculator supports perimeter calculations for common geometric figures such as Circular, Sector, Ellipse, Triangle, Square, Rectangle, and Parallelogram. You can use different formulas and methods to calculate the perimeter of these geometric figures depending on the shape and the given information.

Plane Angle Converter