Aspect ratio calculator Quickly calculate width or height for given aspect ratio. The aspect ratio of an element describes the proportional relationship between its width and its height. Aspect ratio calculator Aspect ratio 21:9 16:10 16:9 11:8 7:3 6:5 5:4 5:3 4:3 4:1 3:2 2.76:1 2.414:1 2.35:1 2.2:1 2:1 1.9:1 1.85:1 1.6180:1 1.43:1 1:1 Cinemascope Width Height Round values? Submit!