Distance between 3D Points
Distance between two points in a three dimension x, y and z coordinate system  online calculator.
The distance between two points in a three dimensional  3D  coordinate system can be calculated as
d = ((x_{2}  x_{1})^{2} + (y_{2}  y_{1})^{2} + (z_{2}  z_{1})^{2})^{1/2} (1)
where
d = distance (m, inches ...)
x, y, z = coordinates
Example  the Distance between two points in a three dimensional space
The distance between point P_{1}(1,1,0) and point P_{2}(2,1,2) can be calculated as
d = ((2  1)^{2} + (1  1)^{2} + (2  0)^{2})^{1/2}
= 2.24
3D Distance Calculator
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