WordReference English-Spanish Dictionary © 2014:

Principal Translations
conveniencia nfnombre femenino: Sustantivo de género exclusivamente femenino ("mesa", "tabla"). (beneficio, provecho, ventaja)advantage nnoun: Refers to person, place, thing, quality, etc.
  benefit nnoun: Refers to person, place, thing, quality, etc.
 El doctor analizaba la conveniencia de montar el consultorio en su casa.
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WordReference English-Spanish Dictionary © 2014:

Compound Forms:
a conveniencia loc preplocución preposicional: Unidad léxica estable formada de dos o más palabras que funciona como preposición ("a favor de", "en torno a"). (cuando se necesite)easily advadverb: Describes a verb, adjective, adverb, or clause--for example, "come quickly," "very rare," "happening now," "fall down."
  conveniently advadverb: Describes a verb, adjective, adverb, or clause--for example, "come quickly," "very rare," "happening now," "fall down."
a conveniencia de alguien loc preplocución preposicional: Unidad léxica estable formada de dos o más palabras que funciona como preposición ("a favor de", "en torno a"). (en favor de)at [sb]'s convenience exprexpression: Prepositional phrase, adverbial phrase, or other phrase or expression--for example, "behind the times," "on your own."
a su conveniencia as you see fit, at your convenience
la conveniencia o no whether or not to, the advisability of
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'conveniencia' found in these entries
In the Spanish description:
English:

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