What is the postal charges for posting 250 grams letter in Europe?

That will vary according to the country of posting and the country of destination. In Britain an inland letter weighing 250 gr costs 70 pence or if 251-500 gr - 98 pence. However, if it is larger than 353 mm long x 250mm wide x 25mm thick it counts as a small packet and the cost is £1.38 up to and including 250 gr or £1.84 if it weighs 251-500 gr. From Britain to Continental Europe is £2.74 for 240-259 gr. Date: 05 Oct 2007