According to Oleander Solutions (), the revised Spache Formula is:
ʌ k ɔ ɹ d ɪ ŋ WORD_BOUNDARY t ʊ WORD_BOUNDARY oʊ l ɪ æ n d ə ɹ WORD_BOUNDARY s ə l uː ʃ ə n z WORD_BOUNDARY ð ə WORD_BOUNDARY ɹ ɪ v aɪ z d WORD_BOUNDARY s p æ ʃ WORD_BOUNDARY f ɔ ɹ m j ʊ l ə WORD_BOUNDARY ɪ z WORD_BOUNDARY