Declension table of ?ardhamātra

Neuter	Singular	Dual	Plural
Nominative	ardhamātram	ardhamātre	ardhamātrāṇi
Vocative	ardhamātra	ardhamātre	ardhamātrāṇi
Accusative	ardhamātram	ardhamātre	ardhamātrāṇi
Instrumental	ardhamātreṇa	ardhamātrābhyām	ardhamātraiḥ
Dative	ardhamātrāya	ardhamātrābhyām	ardhamātrebhyaḥ
Ablative	ardhamātrāt	ardhamātrābhyām	ardhamātrebhyaḥ
Genitive	ardhamātrasya	ardhamātrayoḥ	ardhamātrāṇām
Locative	ardhamātre	ardhamātrayoḥ	ardhamātreṣu

Compound ardhamātra -

Adverb -ardhamātram -ardhamātrāt