The purpose of this study was to investigate speech rate and fluency in stuttering adults. It was suggested that a measurement guideline of speech rate and fluency for collecting clinically meaningful data be used. Subjects included 10 adults who stutter (mean age=25;8). Syllables were used as the unit of measurement for analyzing the duration of speech. The mean rate was 241 SPM (syllables per minute) for reading, and 196 SPM for spontaneous speaking. Fluency was also measured in both cases. The correlation between rate of speech and fluency was high (r=0.92). A strong positive correlation was found between different investigators in measuring speech rates and fluencies.