FLAG SIZES GUIDE
1 yard
(Ratio 1:2) 3 x 1.5 ft = 91cm x 46cm
(Ratio 2:3) 3 x 2 ft = 91cm x 64 cm
1.5 yards
(Ratio 1:2) 4.5 x 2.25 ft = 137 cm x 69cm
(Ratio 2:3) 4.5 x 3 ft = 137 cm x 91 cm
2 yards
(Ratio 1:2) 6 x 3 ft = 182 cm x 91cm
(Ratio 2:3) 6 x 4 ft = 182 cm x 122 cm
2.5 yards
(Ratio 1:2) 7.5 x 3.75 ft = 228 cm x 114cm
(Ratio 2:3) 7.5 x 5 ft = 228 cm x 152 cm
3 yards
(Ratio 1:2) 9 x 4.5 ft = 274 cm x 137cm
(Ratio 2:3) 9 x 6 ft = 274 cm x 182 cm
Courtesy Flag
18×12 inches 47cm x 30 cm
Buntings
10″ x 12″ (26.5cm x 30.5cm)
12″ x 18″ (30.5cm x 48.7cm)
Code Flags
45 cm x 45 cm
Malaysia 
New Zealand Red Ensign 
British Red Ensign 
Quarantine