How much is a first class stamp?

[TooTicky]

I'm out of touch.

37p? 39? I just buy a book of 12 so not sure really

aparently 34p - will go up to 36p in April (according to google)

34p until next 6th April for a normal letter weighing up to 100g (24cm x 16.5cm x 0.5mm). After that it will be 36p.

Anything bigger/thicker costs more.

Actually - the cost now depends on the size of the envelope.

Thank you
It is small.
Need to go stamp begging around the neighboursa and wanted to have the right money.