How Many Stamps for a Letter First Class?

Want to know how many stamps you need to post a letter first class through Royal Mail within the UK? This How Many Stamps page has the answer!

The table below tells you how many stamps you need to post a letter first class...

Letter First Class

Max. 240mm (L) x 165mm (W) x 5mm (D)

Weight First class
Up to 100g 1 stamp
More than 100g See Large Letter First Class

Letter

Max. 240mm (L) x 165mm (W) x 5mm (D)

Large Letter

Max. 353mm (L) x 250mm (W) x 25mm (D)

Parcel

Over 353mm (L) x 250mm (W) x 25mm (D)