Comparison between the CO radial extent of objects with two datasets (Lupus disk survey and DSHARP project). The Y-axis shows the ratio between the radius from the Lupus disk survey (obtained by fitting an elliptical Gaussian model in the moment zero map) divided by the fiducial radius of the CO disk. The fiducial CO size is considered as the size inferred from the DSHARP dataset by interferometric fitting of the line visibilities with a Nuker model (interferometric modeling described in Appendix A). The X-axis represents the fiducial size to ease the comparison. The colored regions indicate disks with a divergence in sizes below 10% (green region), between and 10 and 30% (yellow), and greater than 30% (red).