Which countries are the poorest in the world? Global Finance magazine has ranked 185 countries according to their gross domestic product based on purchasing power parity per capita, or GDP (PPP). This takes into account the relative cost of living and inflation rates to calculate differences in living standards.

Central African Republic is ranked as the world's poorest country, with an adjusted annual income of just $639.937 (£448.22). All of the 10 poorest countries are in Africa. At the other end of the scale, Qatar tops the list, with an adjusted annual income of $146,011.85 (£102,174.78) per person. Britain is in 27th place, with an average annual income of £27,478.05

In this gallery, IBTimes UK looks at the 10 poorest countries in the world as published by Global Finance magazine based on data from the World Bank and the International Monetary Fund. We have also published the list of the world's 10 richest countries.