Graphing Calculator | Plot Math Functions Online - Free Tool

Plot mathematical functions, solve equations, and visualize data with our modern, responsive graphing calculator

Function Settings

Graph Controls

Try These Examples

Click on any example to add it to the calculator

Parabola

f(x) = x²

Sine Wave

f(x) = sin(x)

Linear Function

f(x) = 2x + 3

Square Root

f(x) = √x

Hyperbola

f(x) = 1/x

Logarithm

f(x) = log(x)

How to Use the Graphing Calculator

  1. Add Functions: Click "Add Function" to create a new function input field.
  2. Enter Expressions: Type your mathematical expression using standard notation (e.g., x^2, sin(x), 2*x+3).
  3. Customize Colors: Click the color circle next to each function to change its graph color.
  4. Set Graph Range: Adjust the X and Y axis minimum and maximum values to focus on the area you want to see.
  5. Plot Graph: Click "Plot Graph" to visualize all your functions.
  6. Try Examples: Click on any function example in the "Function Examples" tab to quickly add it.

Supported Mathematical Operations

  • Arithmetic: +, -, *, /, ^ (power)
  • Functions: sin(x), cos(x), tan(x), log(x), ln(x), sqrt(x), abs(x)
  • Constants: pi, e
  • Parentheses: Use ( ) to control order of operations

Frequently Asked Questions

Is this graphing calculator free to use?
Yes, this graphing calculator is completely free to use with no limitations or subscription required.
Can I plot multiple functions at once?
Yes, you can add multiple functions using the "Add Function" button. Each function will be plotted with a different color on the same graph.
What functions and operations are supported?
The calculator supports basic arithmetic, trigonometric functions (sin, cos, tan), logarithms, square roots, absolute values, and exponents. See the "How to Use" tab for a complete list.
Does the calculator work on mobile devices?
Yes, the calculator is fully responsive and works on all devices including smartphones and tablets.
Can I save or export my graphs?
Currently, you can take a screenshot of your graph. Future updates may include export functionality.

About This Graphing Calculator

This modern graphing calculator is a web-based tool that allows users to visualize mathematical functions and equations. Built with HTML5, CSS3, and JavaScript using the Chart.js library, it provides a clean, intuitive interface for plotting multiple functions simultaneously.

The calculator supports a wide range of mathematical operations including arithmetic (+, -, *, /, ^), trigonometric functions (sin, cos, tan), logarithms, square roots, and absolute values. Users can customize graph colors, adjust axis ranges, and plot multiple functions on the same coordinate plane.

Key features include:

  • Multiple function plotting with distinct colors
  • Responsive design that works on desktop and mobile devices
  • Interactive graph with zoom and pan capabilities
  • Predefined function examples for quick experimentation
  • No installation or registration required

The tool is ideal for students, teachers, engineers, and anyone who needs to visualize mathematical concepts for educational or professional purposes.