British tourists will struggle to make their money go far in popular destinations like America, South Africa and Thailand this summer, according to latest currency figures.
During past 12 months, the pound has fallen the most against the US dollar, dipping by nearly 18%, statistics from Sainsbury's Travel Money showed.
It has also decreased more than 15% in value against the South African rand and fallen nearly 15% against the Thai baht.
The last 12-month period has also seen the pound slip nearly 9% against the euro and decline more than 8% against the Indian rupee.
Of the 11 currencies surveyed, only the Turkish lira proved a good purchase for UK tourists - with the pound rising 2.10% against it in the past year.
Sainsbury's Travel Money head Sam Marrs said: "Sadly, the fall in value of the pound means that holidaymakers may need to exchange more money than they did last year.
"For example, if you wanted to take away $500, it will cost you almost £55 more to buy this amount of currency than it did this time last year.
"It makes it all the more important to ensure that you receive a competitive exchange rate and don't pay commission."