Comparison of the black hole mass computed by Eq. (1) in this work (i.e., using the FWHM of BELs and AGN luminosity at 5100 Å) vs. the mass computed using Eq. (1) of Reines & Volonteri (2015) (i.e., using the H_α FWHM and its luminosity). The purple line shows the 1:1 relation in logarithmic scale. The dashed purple lines indicate the 0.5 dex uncertainty from Eq. (1) of Reines & Volonteri (2015). The mean errors are shown in the top left with error bars. Since both mass estimates use the FWHM of H_α, the errors are partly correlated