UK & International Mail Formats
UK Mail Formats
View the latest Royal Mail information to see the specific sizes that apply when sending franked mail items within the UK.
Letter
Max. Length: 240mm
Max. Depth: 5mm
Max. Width: 165mm
Max. Weight: 100g
Large Letter
Max. Length: 353mm
Max. Depth: 25mm
Max. Width: 250mm
Max. Weight: 750g
Small Parcel
Max. Length: 450mm
Max. Depth: 160mm
Max. Width: 350mm
Max. Weight: 2Kg
Medium Parcel
Max. Length: 610mm
Max. Depth: 460mm
Max. Width: 460mm
Max. Weight: 20Kg
Large Parcel
Min. Length: 610mm
Min. Depth: 460mm
Min. Width: 460mm
Max. Weight: 30Kg
Tube
Length of the item plus twice the diameter must be less than 104cm, with the greatest dimension less than 90cm.
Max. Weight: 2Kg
International Formats
View the latest Royal Mail information to see the specific sizes that apply when sending franked mail items Internationally.
Letter
Max. Length: 240mm
Max. Depth: 5mm
Max. Width: 165mm
Max. Weight: 100g
Large Letter
Max. Length: 353mm
Max. Depth: 25mm
Max. Width: 250mm
Max. Weight: 750g
Parcel
Max total dimensions: Length + Width + Depth no greater than 900mm, with no single side longer than 600mm.
Max. Weight: 2Kg
Tube
Length of the item plus twice the diameter must be less than 104cm, with the greatest dimension less than 90cm.
Max. Weight: 2Kg