Graphing Calculator
Plot functions and equations online on an interactive coordinate plane.
Plot functions and equations online with NepaCalc's free graphing calculator. Enter a supported mathematical expression and visualize it on an interactive coordinate graph directly in your browser. You can compare multiple functions, zoom and pan the graph, and explore mathematical relationships visually without downloading a separate application.
For a deeper understanding of function types, graph features, and mathematical formulas, read the Graphing Calculator Guide.
How to Use the Graphing Calculator
Enter a Function or Equation
Type a mathematical expression into the input field to plot it on the coordinate plane. For linear equations such as y = 2x + 3 or quadratic expressions such as y = x^2 - 4, the graph will render immediately. You can also use the Quadratic Solver to find roots before graphing.
Supported Function Types
The graphing calculator supports common function families including linear, quadratic, polynomial, trigonometric (sin, cos, tan), exponential, and logarithmic expressions. For linear equations that need solving first, use the Linear Equations Solver.
Zoom, Pan, and Compare
Use the zoom and pan controls to explore different regions of the coordinate plane. You can add multiple functions to compare their shapes and intersections on the same graph.