egg size

Size	Europe	USA	Australia	Indonesia
Mega			> 72 gr
Jumbo		> 71 gr	> 68 gr
Extra Large	> 73 gr	65 - 71 gr	60 - 67 gr
Large	63 - 73 gr	58 - 64 gr	52 - 59 gr	60 gr
Medium	53 - 63 gr	51 - 57 gr	43 - 51 gr	50 gr
Small	<>	44 - 50 gr		40 gr
Peewee		35 - 44 gr
Size	Traditional
0	> 75 gr
1	70 - 75 gr
2	65 - 70 gr
3	60 - 65 gr
4	55 - 60 gr
5	50 - 55 gr
6	45 - 50 gr
7	<>

Source: wikipedia, femina