About this calculator
Enter the coordinates of both points.
How to use it
- Enter point 1.
- Enter point 2.
- Read the distance.
The formula
d = √((x₂ − x₁)² + (y₂ − y₁)²)
- Δx, Δy
- horizontal and vertical gaps
Worked example
(1, 2) to (4, 6)
- Δx = 3, Δy = 4.
- d = √(9 + 16) = 5.
What the result means
For points in space, use the 3D distance calculator.
Assumptions
- All lengths in the same unit.
Limitations
- Results are rounded to 10 significant figures.
Frequently asked questions
What is the distance formula?
√((x₂ − x₁)² + (y₂ − y₁)²).
Can distance be negative?
No.
How is it related to Pythagoras?
The gaps in x and y are the legs of a right triangle.
Last reviewed on 3 October 2026. Found a mistake? Tell us.