The article focuses on developing new tools to measure sustainable well-being. The main objective is to offer a method for estimating and measuring well-being sustainability and test its results on the actual data from Ukraine. The indicator well-being funding includes the amount of assets funded by public finances for environment protection, health care, spiritual and physical development, education, social protection and financial assets of households. There is a correlation between the amount of financial assets of well-being fund and average life expectancy at birth. There have been defined principles of achieving food security in terms of well-being sustainability.
Keywords: Food security, household financial assets, public finances, well-being sustainability, indicator of well-being funding.