Power Calculators

📐 3D Distance Calculator

Calculate the straight-line distance between two points in three-dimensional Cartesian space.

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Fill in the details and click Calculate to see your results.


Also available in our Android app, with charts and full breakdown tables.

📘 About the 3D Distance

Find Euclidean distance between two points in 3D space.

🧮 Formula

3D distance
d = sqrt(dx^2 + dy^2 + dz^2)

Where

  • x, y, z = Cartesian coordinates
d = sqrt((x2-x1)^2 + (y2-y1)^2 + (z2-z1)^2).

✏️ Worked example

(1,2,3) to (4,6,9)

You enter
X11
Y12
Z13
X24
Y26
Z29
You get
3D Distance7.81025

The 3D distance is 7.81025.

Try this example →

🧭 How to use this calculator

What you enter

  • X1
  • Y1
  • Z1
  • X2
  • Y2
  • Z2

What you get

  • 3D Distance

💡 Common uses

  • Coordinate geometry homework and revision
  • Analytic geometry calculations
  • Checking graph and line calculations

❓ Frequently asked questions

Can coordinates be negative?

Yes. The formula works with negative and decimal coordinates.