Coplanar Waveguide Calculations PCBS, AppCAD v.s. Online calculators
Compare the two: -


One gives an electrical length of 0.0871 wavelengths and the other gives 0.086
One gives a \$Z_0\$ of 53.3 ohms and the other gives 53.1 ohms


One of the calculators asks for metal thickness (Tmet) the other probably assumes some value like 0.35 mm.

Now ask yourself if the results are really that different and might they have a significant bearing on the signals passing down them.