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Calculators / Math / Distance between two points
Distance between two points calculator
Measure straight-line distance between two Cartesian points.
On this page
Distance5units
Calculator controls
How to calculate
Measure straight-line distance between two Cartesian points.
Distance = sqrt((x2-x1)^2+(y2-y1)^2)
Worked example
First x coordinate: 1; First y coordinate: 2; Second x coordinate: 4; Second y coordinate: 6.
Distance: 5 units.
Assumptions and limits
No. Geographic coordinates lie on a curved Earth and use angular units. This formula assumes a flat plane and matching linear coordinate units.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
The straight-line distance on a two-dimensional Cartesian plane combines the horizontal and vertical differences using the Pythagorean theorem.
When this tool is useful
Measure straight-line distance between two Cartesian points.
Understanding your inputs
| Input | What to enter |
|---|---|
| First x coordinate | Enter a number of at least -1000000000 and no more than 1000000000. |
| First y coordinate | Enter a number of at least -1000000000 and no more than 1000000000. |
| Second x coordinate | Enter a number of at least -1000000000 and no more than 1000000000. |
| Second y coordinate | Enter a number of at least -1000000000 and no more than 1000000000. |
Frequently asked questions
Can I enter latitude and longitude?
No. Geographic coordinates lie on a curved Earth and use angular units. This formula assumes a flat plane and matching linear coordinate units.