This article is from the Cooking and Conversions FAQ, by with numerous contributions by Victor Sack cooking.faq@mac.com others.
According to the BEIS (British Egg Information Service) Web site, eggs
in the UK are now sold in four different sizes: Small, Medium, Large and
Very Large (these replace the old sizes 0 to 7).
UK egg sizes
New Size Weight Old Size Very Large 73g +over Size 0 Size 1 Large 63 - 73g Size 1 Size 2 Size 3 Medium 53 - 63g Size 3 Size 4 Size 5 Small 53g +under Size 5 Size 6 Size 7
Egg sizes Average weight Jumbo 2 1/2 oz (71g) Extra-large 2 1/4 oz (64g) Large 2 oz (57g) Medium 1 3/4 oz (50g) Small 1 1/2 oz (43g) Peewee 1 1/4 oz (35g)
 
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