This booklet explains how interest rates are calculated and the types of interest rates a consumer may encounter when dealing with financial service providers in Bahrain. Knowing about interest rates is important to consumers since it tells them how much it costs to borrow money and how much they can earn by depositing their money with a bank. Interest rates only apply to loans and deposits from conventional financial institutions. Islamic financial institutions do not charge or pay interest, but have other fees and payments not found in conventional institutions. This booklet looks only at interest rates in conventional banks. There is a Glossary at the back.