The 12th Conference on Fast Field Cycling NMR relaxometry will be held in the historic city of Cambridge, UK on the 13th-15th of July 2022. Since the first meeting, which was held in Berlin in 1998, the Fast Field Cycling NMR Relaxometry community has grown in number and interests. The past conferences have brought together researchers from a range of backgrounds (physicists, chemists, engineers, biologists, physicians) to discuss the theory, applications and new developments in fast field cycling and low field NMR relaxometry. The 12th conference in the series will continue this multidisciplinary trend, and will cover systems including, but not limited to, porous and heterogeneous systems, polymers, biological tissues, contrast agents, solids, ionic liquids and pharmaceuticals.