South Hams Chess Club
South Hams Chess Club

Convert Between New ECF Ratings and Old ECF Grades

This little tool enables you to input an old-style ECF grade and see the new ECF rating equivalent, or vice versa. In accordance with the ECF's guidance, the conversion formula is 7.5 x (old grade) + 700 = new rating.



Either a 3-digit old-style grade or a 4-digit new-style rating.