Geometry & Trig Tools

Convert between radians and degrees instantly. Enter any angle value and get the equivalent measurement in both units with the conversion formula shown.

Calculate the area of common 2D shapes including circles, rectangles, triangles, trapezoids, and parallelograms. Enter the required dimensions for an instant result.

Calculate the volume of 3D geometric solids including cubes, spheres, cylinders, cones, and rectangular prisms. Shows the formula used for each shape.

Calculate the perimeter or circumference of geometric shapes: circles, squares, rectangles, triangles, and more. Instant result with the formula displayed.

Calculate all six trigonometric functions (sin, cos, tan, csc, sec, cot) and their inverses. Works in both degrees and radians with instant results.

Calculate the hypotenuse or any side of a right triangle using the Pythagorean theorem (a² + b² = c²). Enter any two sides to find the missing one.

Find the exact midpoint between two coordinate points in 2D space. Enter (x1, y1) and (x2, y2) to get the midpoint and see it plotted on a graph.

Calculate the straight-line Euclidean distance between two coordinate points using the distance formula. Works in both 2D and 3D coordinate systems.

Calculate the slope (gradient) of a line between two points. Shows the rise/run ratio, slope angle in degrees, and the linear equation of the line.