In summary, we examined the calibration of the Hubbard U parameter for use in MOFs that we achieve by tuning properties of corresponding SBU cluster models. We applied this calibration approach to the prediction of adsorption energies on both the cluster and the full periodic MOF and demonstrated the utility of this approach for accurately calculating the adsorption energies of N2, CO2, and O2 on 24 well-known MOF systems. We evaluated the sensitivity of calculated adsorption energies of isolated SBU cluster models across three different methods: the semi-local GGA PBE, local-hybrid HSE06, and CCSD(T). While PBE generally predicted higher binding affinities than HSE06 and CCSD(T), incorporating exact exchange through HSE06 brought the adsorption energies closer to those obtained with CCSD(T). We verified the applicability of the U parameter calibrated against the SBU in improving the accuracy of the calculation of the full periodic MOF system by comparing PBE+U and HSE06 results. The U parameter was calibrated to align the PBE+U adsorption energies with those calculated using HSE06 for SBUs in two calibration approaches. In the first approach, a USBU was tailored to each specific SBU/gas-molecule system, and, in the second approach a Umetal was obtained by fitting a single U value for the metal-gas chemistry across SBUs sharing the same metal/gas pair. Both USBU and Umetal successfully reduced the MAD of PBE compared to HSE06.