The experimental determination of the stoichiometry of MOFs can be very helpful to understand their properties. Typically, the stoichiometry is calculated from TGA data, using both the mass loss associated with the linker and the residue, assumed to be only metal oxide. In this contribution we presented a simple approach to combine TGA and 1 H liquid-state qNMR data and calculate the MOF stoichiometry. In our method the TGA residue is used to calculate the metal content, while the organic linker concentration is calculated from qNMR. Some precautions needed to perform qNMR were highlighted. For three examples, MAF-6, ZIF-8 and MOF-5, we have compared our method to two well-known methods, by Shearer et al. and Abánades-Lázaro. As these three samples were prepared targeting the perfect stoichiometry, they represent the simplest possible case. In two cases our method was in very good agreement with the literature methods, however for our ZIF-8 sample the result differed significantly, requiring further investigation. Future work will include standard digestion protocols for other MOFs, such as the classic UiO-66 example, and systematic case studies of more complicated cases, such as MTV-MOFs or defect-engineered MOFs.