Would you happen to know the current exchange rate?
Apparently this is the most accurate currency converter you will find on the internet:
http://www.bc.gov.cu/Espanol/tipo_cambio_METROPOLITANO.asp
And a little backgound in English from the same site:
http://www.bc.gov.cu/English/home.asp
And this is some info copied from Trip Advisor:
On Monday 14th March 2011 Cuba's Central Bank devaluated the Convertible Peso or CUC by 8% against all foreign currencies. This measure now pegs the CUC at 1 x 1 with the US Dollar where it used to be pre April 2005.
The convertible peso (CUC) is a closed currency, which means it cannot be purchased outside of Cuba. You can change your money at the Cadeca (Money Exchange Bureau) at the Airport on landing in Cuba, at a Cuban bank or at your hotel.
If you reside in the UK you should take Sterling, Canadians should take Canadian dollars and if you are from a European destination that uses the Euro, then take Euros. Clean, untorn bills in good condition with no writing on them. Please note that Scottish notes are not acceptable.
The exchange rate varies on a daily basis and can be checked at this link which, unfortunately is very slow to load:
bc.gov.cu/Espanol/tipo_cambio_METROPOLITANO.…
Please note this is the ONLY accurate site for Cuban Convertible Pesos. All the other internet currency exchange sites (like coinmill.com, xe.com, oanda.com, x-rates.com, etc.) are useless for real budgeting because they only give mid-market rates, ignoring the buy/sell costs that you'll be charged at the bank or Cadeca in Cuba.
Where to exchange your money:
1.) The best exchange rate is a Bank.
2.) The next best exchange rate as it any Cadeca. A Cadeca (Casas de Cambio which means House of Exchange) is a government exchange facility. They are located at many resorts and hotels, and at locations all over the Island.
3.) The next best rate is at the Airport Cadeca.
4.) The worst rate can potentially be over-the-counter at any hotel or resort because the rate is not regulated by the government.
On a 1 or 2 week all-inclusive holiday the difference between Options 1, 2 & 3 is immaterial.