Muon-electron conversion in nuclei is considered in the framework of the du
alized standard model. The ratio Bmu-e of the conversion rate to the total
muon capture rate is derived and computed for several nuclei in a parameter
-free calculation using parameters previously determined in other physical
contexts. The values obtained all lie within the present experimental bound
s, but some are so close as to seem readily accessible to experiments alrea
dy being planned.