The Distance Calculator is a fundamental tool in coordinate geometry, used to find the straight-line distance between two points on a 2D Cartesian plane. This is often referred to as the Euclidean distance. This calculation has wide-ranging applications in fields such as graphic design, physics simulations, navigation, and video game development. The tool simplifies this process by applying the distance formula for you. To use the calculator, you need to define the coordinates of your two points. The interface is divided into two sections: 'Point 1' and 'Point 2'. For 'Point 1', you will enter its x-coordinate (X1) and y-coordinate (Y1). Similarly, for 'Point 2', you will enter its corresponding coordinates (X2 and Y2). The labels make it clear which input field corresponds to which coordinate. Once you have entered all four values, click the 'Calculate Distance' button. The tool will then use the distance formula, which is derived from the Pythagorean theorem: d = √((x₂ - x₁)² + (y₂ - y₁)²). The calculated distance, representing the length of the line segment connecting the two points, will be displayed clearly in the results area. This provides a quick, accurate, and error-free way to perform this essential geometric calculation.