Are their common units for strength-to-weight ratios?

The numbers kind of all look wacky when I try it -- Pascal-m^3/kg = (N/
m^2)*(m^3)/kg = N-m/kg = (kg-m/s^2)(m)/kg = m^2/s^2?

I've never seen it expressed that way, or as in^2/s^2.

I hear folks talking about the ratio, but don't see it quoted much in
engineering units...

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