With ab initio computer simulations, we derived the equation of state tables for liquid and superionic H2O at high pressure and temperature. Here we include two representative models for the interior structure of Uranus (U123 and U125) and two for Neptune (N124 and N126). We also uploaded files that provide the gravity harmonics. The files are formatted according to the machine-readable format used by the AAS Journals and CDS/VizieR. A list of the files included in this deposit is as follows: H2O_EOS_39_liquid_mrt.txt Equation of state of liquid H2O H2O_EOS_40_superionic_mrt.txt Equation of state of superionic H2O N124_layers_EOS_mrt_with_header.txt Interior structure of Neptune of type C N124_harmonics_mrt_with_header.txt Corresponding gravity harmonics N126_layers_EOS_mrt_with_header.txt Interior structure of Neptune of type B N126_harmonics_mrt_with_header.txt Corresponding gravity harmonics U123_layers_EOS_mrt_with_header.txt Interior structure of Uranus of type C U123_harmonics_mrt_with_header.txt Corresponding gravity harmonics U125_layers_EOS_mrt_with_header.txt Interior structure of Uranus of type B U125_harmonics_mrt_with_header.txt Corresponding gravity harmonics