Right Triangle Calculator

This calculator performs all right triangle calculations at once. Enter just two values (side lengths or angles) and all other values are automatically calculated. Provides all information including three side lengths, two acute angles, area, and perimeter. Uses Pythagorean theorem and trigonometric functions (sin, cos, tan) to derive accurate results.

Calculate angles when you know side lengths, or conversely calculate side lengths when you know angles. Uses sin, cos, and tan functions to display accurate angles in degrees. For example, knowing the base and height allows you to find angles using the tan function, and knowing an angle and one side allows you to calculate other sides.

The area of a right triangle is calculated using the formula (base × height) ÷ 2. The perimeter is the sum of all three side lengths. This calculator first calculates all side lengths based on input values, then automatically computes area and perimeter. Very useful for determining material requirements in construction or fabrication projects.

Right triangle calculations are essential in architecture, carpentry, metalworking, and other fields. Used for calculating roof pitch, staircase design, ramp design, and more. Without accurate angle and length calculations, structures may not fit properly or safety issues may arise. Using this calculator allows you to verify exact measurements before construction to prevent errors.

Right triangles are the foundation of trigonometry and a very important concept for students learning math and physics. Using this calculator allows you to apply theory practically and understand trigonometric concepts more deeply. Explore the relationship between side lengths and angles by entering different values, helping develop mathematical intuition.

Results are displayed not only numerically but also as visual charts. Compare side lengths and intuitively understand triangle proportions using Chart.js graphs. Very useful for educational materials or presentation preparation. Works responsively on all devices and supports dark mode for convenient use in any environment.