Online Math Tools

BrushCue offers a growing set of free math and calculation tools that run entirely in your browser.

Geometry

These tools solve common geometry calculations.

Calculate the length of a right triangle's hypotenuse from its two other side lengths using the Pythagorean theorem.

Calculate the area of a square from its side length.

Calculate the area of a rectangle from its width and height.

Calculate the area of a triangle from its base and vertical height.

Calculate the area of a parallelogram from its base and vertical height.

Calculate the area of a trapezoid from its two parallel base lengths and its vertical height.

Calculate the area of a circle from its radius.

Calculate the area of an ellipse from its semi-major and semi-minor axis lengths.

These tools perform common arithmetic and number theory calculations.

Calculate the factorial of a non-negative integer — the product of all positive integers up to that number.

These tools convert between angle units and solve common trigonometry calculations.

Convert an angle from degrees to radians.

Convert an angle from radians to degrees.

Calculate the sine of an angle entered in degrees.

Calculate the sine of an angle entered in radians.

Calculate the cosine of an angle entered in degrees.

Calculate the cosine of an angle entered in radians.