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We use public data for 105783 quasars from The Sloan Digital Sky Survey(SDSS) Data Release 7 (DR7) that include spectral monochromatic luminosities at5100\AA, 3000\AA, and 1350\AA, and the corresponding observed broad-band ugriz,VRI (converted), JHK and WISE magnitudes, and derivebroad-band-to-monochromatic luminosity ratios independent of a cosmologicalmodel. The ratios span the redshift range of z=0.1-4.9 and may serve as a proxyfor measuring the bolometric luminosity, broad line region (BLR) radii and/orblack hole masses, whenever flux-calibrated spectra are unavailable or theexisting spectra have low signal-to-noise ratios. They are provided both intabular and parametric form.

Empirical Conversions of Broad-Band Optical and Infrared Magnitudes to Monochromatic Continuum Luminosities for Active Galactic Nuclei