162.3 cm by 116.0 cm and 125.0 inch by 71.0 inch is the size of the painting . It was made in synthetic polymer paint on canvas . The artist of David with the Head of Goliath was Antonio da Correggio . This was painted in 1814 . David with the Head of Goliath is at Tate Britain
Length is 51.30000000000001cm more than width