Free Graphing Calculator Online
Plot functions, solve expressions, and run scientific calculations in one place
A graphing calculator for formulas, functions, and quick checks
This free graphing calculator helps you solve expressions, plot functions, and review results in one place. It works well for classwork, engineering tasks, quick checks, and visualizing how a function behaves before you move into deeper analysis.
What you can do with it:
- Solve expressions with parentheses, powers, roots, and percentages
- Use scientific functions such as sin, cos, tan, log, and ln
- Plot functions of x and review the curve instantly
- Switch between calculator mode, graph mode, or a split view
- See live feedback while typing and keep a running history
What you can plot:
- Quadratic, trigonometric, logarithmic, and mixed expressions
- Functions like x^2, sin(x), x^3 - 2*x + 1, and similar formulas
- Custom X-axis ranges for focused graph analysis
- Automatic scaling on the Y-axis
- A fast visual check before deeper analysis in other tools
Modes:
- Calculator
- Graph
- Both
Where people use this tool:
Use it for homework, exam prep, engineering-style math, and quick scientific calculations without opening a desktop app.
Use the graph view to preview parabolas, sine waves, growth curves, and custom functions before moving into deeper analysis.
FAQ
How do I plot a function online?
Switch to graph mode, enter a function of x, and the graph appears automatically.
Can I use this as a scientific calculator?
Yes. It supports trigonometric functions, logarithms, roots, powers, and other common scientific operations.
Is this graphing calculator free to use?
Yes. You can use the calculator and graphing features online for free.
What kinds of functions can I graph?
You can graph many standard expressions, including quadratic, trigonometric, logarithmic, and mixed functions of x.