Distance Between Two Points Calculator
Find the straight-line distance between two points on a plane.
Distance
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Horizontal change (Δx)
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Vertical change (Δy)
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Midpoint
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Results update as you type.
About this calculator
This calculator finds the distance between two points (x₁, y₁) and (x₂, y₂) using the distance formula, which is the Pythagorean theorem applied to coordinates: d = √((x₂ − x₁)² + (y₂ − y₁)²). It also shows the horizontal and vertical differences.
Frequently asked questions
What is the distance formula?
It is d = √((x₂ − x₁)² + (y₂ − y₁)²). Between (0,0) and (3,4) the distance is √(9 + 16) = √25 = 5.
How does it relate to the Pythagorean theorem?
The horizontal and vertical gaps form the two legs of a right triangle, and the distance is its hypotenuse — so the distance formula is Pythagoras on the grid.
Results are estimates for general guidance only, not financial, medical or tax advice.