Point Grapher | Cartesian & Polar Coordinates Plotter

Explore our point grapher, a versatile coordinates plotter that creates point graphs and line graphs in Cartesian (rectangular and oblique) and polar coordinate systems.

A points grapher, also known as coordinates grapher, is a grapher that plots a set of points in a coordinate system, where the coordinates of the points are given by ordered pairs (an, bn).

The coordinates or components of the points can be Cartesian coordinates or polar coordinates.

Our online point grapher is a powerful coordinates plotter that lets you easily plot points and create a point graph or line graph in Cartesian and polar coordinate systems.

Our online coordinates grapher is the only coordinates plotter that allows you to rotate axes, graph points, and create line graphs in oblique coordinate systems, where the axes can be rotated to any angle and have any orientation.

To use our point grapher, simply enter the coordinates of each point, separated by a comma, and separate the points by semicolons. For example, to plot points (1, 2) and (3, 4) enter 1,2; 3,4; (note that parentheses are excluded). You can even use numeric expressions, such as 2/3 + sin(pi/3), for the components of a point.

When graphing points in polar coordinates, our online polar point grapher, enables you to input angular coordinates in various units, including radians, degrees, and grades.

As you type:
  • pi is replaced by π.
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To copy or save graphs right click on the image of a saved graph below and select "Copy image" or "Save image" from the pop-up menu.

MouseMatics: Learn how you can use your mouse to rotate axes, change scales, and move coordinate system.


The points plotter is easy to use; type in the Cartesian or polar coordinates of a set of points. The points (a1, b1), (a2, b2), ... are entered as a1,b1; a2,b2; ... In other words, separate the Cartesian or polar coordinates of each point by a comma and the points themselves by a semicolon. The last semicolon is optional, see the note below. You can use numeric expressions such as 1/2+sin(π/3) for point coordinates.

The points grapher plots the given point set as you type (default) either in the Cartesian or polar coordinate system, depending on which one you have selected.

To draw the points (rn, θn) in the polar coordinate system, select the polar checkbox. You can enter the radial angles θn in radians, degrees, or grades by selecting the corresponding angle mode.

You can set the following options by pressing the ⚙ (gear) button at the top right corner of the graph canvas.

Graphing Point Sets in Oblique Coordinate Systems

Our point grapher is the only one that enables you to rotate axes. This allows you to plot coordinates in an oblique coordinate system, where any axis can be at any angle from the horizontal and have any orientation.