# siunitx use \per with: \cubic\metre\per\hour not centered

I used siunitx package to display: cubic meter per hour like:

\SI{}{\cubic\metre\per\hour}


but the print seems to be somehow not centered. Is this the way it should look or am I using the package wrong? Thanks!

• Please clarify what you mean by "not centered". To me, the numerator and denominator terms look perfectly centered... – Mico Apr 9 '17 at 14:00
• mh, than it is just me seeing ghosts... – Redfox87678 Apr 9 '17 at 14:07
• @Redfox87678 Currently the h is centred below m^3. What output do you desire? The h centred under the m (without taking the ^3 into account)? – user36296 Apr 9 '17 at 14:24

I looks like you've set the option per-mode=fraction of the siunitx package. (The default is per-mode=reciprocal, by the way.) If the resulting fraction expression looks asymmetric or unbalanced to you -- it doesn't to me, but impressions are subjective -- you may want to switch to either per-mode=reciprocal or per-mode=symbol. One advantage of the latter two options is that the symbols m and h are rendered at the size of the surrounding running text.
\documentclass{beamer}