Distance Between Two Points Calculator
Find the straight-line distance between two points on a plane.
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
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Request a ToolHow to Use the Distance Between Two Points Calculator
This tool computes the straight-line distance between two points on a 2D coordinate plane.
- Enter Point 1. Provide x1 and y1 coordinates.
- Enter Point 2. Provide x2 and y2 coordinates.
- View the distance. The result updates live as you type.
About the Distance Formula
The distance between two points (x1, y1) and (x2, y2) is d = sqrt((x2 - x1)^2 + (y2 - y1)^2). This formula comes directly from the Pythagorean theorem: the horizontal and vertical differences form the legs of a right triangle, and the distance is the hypotenuse. It is one of the most commonly used formulas in coordinate geometry.
Frequently Asked Questions
Is this the same as the distance formula?
Yes. The distance between two points formula, d = sqrt((x2-x1)^2 + (y2-y1)^2), is exactly the distance formula derived from the Pythagorean theorem.
Does the order of the points matter?
No. Distance is symmetric, so swapping Point 1 and Point 2 gives the same result. The differences are squared, which eliminates sign changes.
How is this different from 3D distance?
This calculator works on a flat 2D plane with x and y coordinates. The 3D distance calculator adds a z-coordinate for three-dimensional space.