# How to find bond lengths from .cif files of crystal structure

I am confused about how to calculate the bond lengths within a given structure given its .cif file. I have highlighted the bond of interest in the image below. The atom coordinates are shown in the dialog box at the bottom of the screen. I used the formula for calculation of distance between two points in 3-D space (square root of the sum of squares of the differences between corresponding coordinates) and got $$\pu{0.2372 \mathring A}$$. VESTA gives the bond length as $$\pu{1.93 \mathring A}$$ angstroms which seems correct given the lattice parameters (cubic, $$a=b=c= \pu{8.134 \mathring A}$$). Am I missing something here?

• If you multiply your 0.2372 by the cell parameter of 8.134, you'll get the right answer. Those are fractional coordinates, you see. – Ivan Neretin Jun 30 '20 at 22:36