Lingual coarticulatory effects on intervocalic stop consonants in French, Italian and English were studied with EPG. Nonsense words of the type /bV'CV/ (where C = /t,k/ and /V/ =/i,a/ were repeated five times by three native speakers in carrier sentences, and the coarticulatory influences of the vowel on C were studied at the onset of closure and at the release. A numerical index of lingual coarticulation was proposed and the results showed some similarities and differences between the languages, e.g. English showed more tendency towards carryover coarticulation than either French or Italian.