This article is from the Photographic Lenses FAQ, by David Jacobson with numerous contributions by others.
Yes. When the object distance is small with respect to the hyperfocal distance, the front and rear depth of field are almost equal and depend only on the magnification and effective f-stop and the following approximate formulas can be used.
frontdepth = reardepth = Ne*c/M^2 frontdepth = reardepth = So/hr
In non-macro situations Ne is the same as the marked f-number.