Calcist

Style

Buttons

Spacing

How much to show

Decimal places

Text size

Graphing calculator

Type a function like x^2 − 4 and see its graph instantly. Plot up to three at once, trace any point, and read the intercepts and a table of values underneath.

Move over the graph to trace it. Drag to move around, and scroll or pinch to zoom.

    Table of values

    Private: calculated on your device. Nothing you type is sent anywhere.

    How to use the graphing calculator

    • Type a function of x in y₁, y₂ or y₃. Write powers with ^ (x^2), roots as sqrt(x), and you can leave out × between a number and x: 2x + 1 works.
    • Move and zoom: drag the graph to move around, scroll (or pinch on a phone) to zoom, or use the + and − buttons. Reset goes back to −10 to 10.
    • Trace: move your pointer or finger across the graph to read the y value of every function at that x.
    • Key points: below the graph, Calcist lists where each curve crosses the y-axis and the x-axis (its zeros) within the view.

    What you can graph

    Lines (2x + 1), parabolas (x^2 − 4), cubics (x^3 − 3x), trig (sin(x), cos(2x)), exponentials (2^x, e^x), logarithms (ln(x)), roots (sqrt(x)), absolute value (abs(x)) and fractions like 1/x. Gaps in a graph, like 1/x at x = 0, are left open rather than joined.

    Where two graphs cross

    Graph both sides of an equation as y₁ and y₂: they meet where the equation is true. For an exact answer with steps, use the equation solver.

    Learn: How to graph a function · Degrees and radians

    Questions people ask

    Is this graphing calculator free?

    Yes. It runs in your browser with no download, account or ads.

    How do I find the x-intercepts?

    They're listed under the graph for each function, for the part of the graph you can see. Zoom out to find more.

    Can it graph sin and cos in degrees?

    Yes. Switch Rad to Deg under the graph.

    Can I share a graph?

    Yes. The page address keeps your functions, so copy it from the address bar.

    Related calculators

    Equation solverSolve for x in linear and quadratic equations, step by step.Scientific calculatorsin, cos, logs, powers, roots and more, with a history you can edit.Slope calculatorRise over run, the line's equation, angle and distance.System of equationsSolve 2 or 3 equations with 2 or 3 unknowns, with working.