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3D Distance Calculator

Result

Calculated result 13 Based on the values entered.
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3D Distance Calculator This 3D distance calculator finds the straight-line distance between two points (x₁, y₁, z₁) and (x₂, y₂, z₂) in space. It extends the Pythagorean theorem to three dimensions: Distance = √[(x₂ − x₁)² + (y₂ − y₁)² + (z₂ − z₁)²]. Ente — free online calculator.

Formula

Distance = √[(x₂-x₁)² + (y₂-y₁)² + (z₂-z₁)²]
  • 3D Distance Calculator calculates its result from X1, Y1, Z1, X2, Y2, Z2. It uses the formula Distance = √[(x₂-x₁)² + (y₂-y₁)² + (z₂-z₁)²]. Change any input to recalculate the result instantly.
  • The main inputs are X1, Y1, Z1, X2, Y2, Z2. Enter them in the units and format shown in the calculator.
  • Keep comparable quantities in compatible units whenever the formula combines or compares them.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: 3D Distance

Inputs
  • X1: 0
  • Y1: 0
  • Z1: 0
  • X2: 3
  • Y2: 4
  • Z2: 12

Using X1 = 0, Y1 = 0, Z1 = 0, X2 = 3, Y2 = 4, Z2 = 12, the calculated result is 13.

Sample result: Calculating…

Frequently asked questions

What does the 3D Distance calculate?

3D Distance Calculator This 3D distance calculator finds the straight-line distance between two points (x₁, y₁, z₁) and (x₂, y₂, z₂) in space. It extends the Pythagorean theorem to three dimensions: Distance = √[(x₂ − x₁)² + (y₂ − y₁)² + (z₂ − z₁)²]. Ente — free online calculator.

Which values should I enter?

Enter X1, Y1, Z1, X2, Y2, Z2 using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: Distance = √[(x₂-x₁)² + (y₂-y₁)² + (z₂-z₁)²].

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026