How to use this calculator

The distance formula is the Pythagorean theorem applied to coordinate differences.

The method

d = √((x₂−x₁)² + (y₂−y₁)²)

Enter your values in the labeled fields and choose Calculate. The result panel shows the answer and supporting values when useful.

WORKED EXAMPLE INPUT

x₁: 2, y₁: 3, x₂: 8, y₂: 15

Select Calculate to evaluate these example values.

Scope and limitations

Works in a two-dimensional Cartesian plane.

Common questions

Can I use different units?

Use consistent units unless this page is a unit converter. The result follows the units implied by the inputs.

Are results exact?

Displayed values may be rounded. Keep extra precision for important follow-up calculations.

Methods & verification

Formulas use standard mathematical definitions and fixed unit factors where applicable. See our methodology for numerical conventions, rounding, privacy, and limitations.