Frequency‐discrimination thresholds, for a wide range of stimulus frequencies and stimulus levels, were obtained from three normal‐hearing listeners. Linear regression analyses of the present data, and of data from two previous studies, indicate that an SL−1transformation of stimulus level and a (F)1/2transformation of stimulus frequency yield linear dimensions that allow accurate predictions of frequency‐discrimination thresholds from normal‐hearing listeners over a wide range of stimulus frequencies (125–8000 Hz) and stimulus levels (5–80 dB SL) with a single prediction equation.