3D Graphing Calculator

3D Surface Plotter

Enter Function:

About the 3D Surface Plotter

The EngLab 3D Surface Plotter is a free online tool that allows you to visualize and explore 3D surfaces defined by equations of the form z = f(x, y). Interact with your graphs in real-time, rotate the 3D view, and download high-quality PNG images of your surfaces.

How to Use the 3D Surface Plotter

Using this tool is simple and intuitive:

• Enter a function in the form z(x,y) =, for example: sin(x)*cos(y) or x^2 - y^2.
• Specify the x and y ranges to define the area of the surface plot.
• Click Plot Surface to render your 3D graph interactively.
• Rotate, zoom, and pan the 3D surface to analyze its features from different perspectives.
• Download the graph as a high-quality PNG for presentations, reports, or assignments.

Features of the EngLab 3D Surface Plotter

• Interactive 3D surface visualization with rotation, zoom, and pan.
• Supports a wide range of mathematical functions including trigonometric, polynomial, exponential, logarithmic, and custom expressions.
• Customizable x and y ranges for precise graphing of surfaces.
• Instant rendering of surfaces, allowing immediate exploration of complex functions.
• High-quality downloadable PNG output for documentation, assignments, or reports.
• Responsive and user-friendly interface suitable for students, educators, engineers, and math enthusiasts.
• Completely free to use online without any software installation.

Example 3D Functions

• z = sin(x) * cos(y)
• z = x^2 - y^2
• z = exp(-0.1*(x^2 + y^2))
• z = sqrt(x^2 + y^2)
• z = sin(sqrt(x^2 + y^2)) / sqrt(x^2 + y^2)

With the EngLab 3D Surface Plotter, visualizing, analyzing, and sharing complex mathematical surfaces is fast and intuitive. This tool is ideal for learning, teaching, and professional use, providing instant insights into the behavior of functions in three dimensions.