http://dictionary.reference.com/browse/comparable
com·pa·ra·ble (kom-per-uh-buhl or, sometimes, kuhm-pair-)
adjective
1. capable of being compared; having features in common with something else to permit or suggest comparison: He considered the Roman and British empires to be comparable.
2. worthy of comparison: shops comparable to those on Fifth Avenue.
3. usable for comparison; similar: We have no comparable data on Russian farming.