This study developed a food security index that is consistent with four principles: boundedness, reliability, duplicability, and applicability. The index is called KUFSI which is easy to interpret and comparable. The KUFSI is composed of three components: physical, economic, and market component. The KUFSI is calculated in quantity term as well as in calorie term. The KUFSI measures a country‟s capability of accessing to food needed as a whole. The capability can be compared across time and with other countries. The index can also be used to build early warning systems for individual countries.