3D Distance Calculator
Math
Find the Euclidean distance between two 3D points.
Formula
d = √(Δx² + Δy² + Δz²)
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
Example Calculation
Example inputs
- x₁: 0
- y₁: 0
- z₁: 0
- x₂: 2
- y₂: 3
- z₂: 6
The distance from the origin to (2,3,6) is 7.
Frequently asked questions
How do I use this calculator?
Enter x₁, y₁, z₁, x₂, y₂, z₂. The result updates automatically. Use Reset to restore the example values.
What method does it use?
d = √(Δx² + Δy² + Δz²). Follow the units and definitions shown with the inputs to apply this relationship consistently.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.