CalmCalc
MATH

Distance Calculator

Estimate distance from point 1 x, point 1 y, point 1 z with the Distance Calculator.

Choose a distance modelMeasure coordinate distance in two or three dimensions, or distance across Earth.
3 options
DISTANCE5 m

2D coordinates: Uses Euclidean distance for coordinates and the haversine great-circle model for latitude/longitude.

Estimate based on the values shown
MethodUses Euclidean distance for coordinates and the haversine great-circle model for latitude/longitude.

Before you use the result

The result depends on the entered values, selected mode, and displayed mathematical assumptions.

CALCULATOR GUIDE

How to use the Distance Calculator

Estimate distance from point 1 x, point 1 y, point 1 z with the Distance Calculator. It includes 2D coordinates, 3D coordinates, Latitude & longitude workflows, so choose the one that matches the values you actually know. Use it to check the arithmetic while keeping the displayed method and entered values with your work.

Step by step

  1. For the Distance, enter point 1 x, point 1 y, point 1 z, point 2 x, point 2 y. Keep each value in the unit displayed beside its field.
  2. Review the selected Distance workflow and inputs, then read distance in the result panel.
  3. Change one Distance assumption at a time to compare scenarios. Use Reset to restore this tool's worked example values.

How the calculation works

Uses Euclidean distance for coordinates and the haversine great-circle model for latitude/longitude.

Worked example

In the Distance worked example, point 1 x 1, point 1 y 2, point 1 z 0, point 2 x 4 produces distance of 5. 2D coordinates: Uses Euclidean distance for coordinates and the haversine great-circle model for latitude/longitude. Review the displayed units before comparing the result.

Understanding the result

The Distance reports distance. Use it to check the arithmetic while keeping the displayed method and entered values with your work. The result depends on the entered values, selected mode, and displayed mathematical assumptions.

How to check the answer

Check the Distance answer by substituting distance back into the stated relationship. Test a simple value such as zero, one, or an equal pair, then confirm that sign, scale, units, and rounding match Uses Euclidean distance for coordinates and the haversine great-circle model for latitude/longitude.

Common questions

What does the Distance calculate?

Estimate distance from point 1 x, point 1 y, point 1 z with the Distance Calculator.

Which Distance inputs have the biggest effect?

distance responds directly to point 1 x, point 1 y, point 1 z, point 2 x, point 2 y. Change one input while holding the others constant to see its effect.

Is the Distance result exact?

The result depends on the entered values, selected mode, and displayed mathematical assumptions. Recheck point 1 x, point 1 y, point 1 z and use distance only for a decision where that level of precision is appropriate.

Formula tests, limits, sources, and guide registry updated September 1, 2026.
INTERPRET THE RESULTRead the math guideCheck assumptions, limitations and comparison methods →