This map shows Muslim countries worth $1.0 trillion dollars or more by GDP (PPP). There are eight Muslim countries in the trillion dollar club. Indonesia is worth the most (2016).

Introduction:— The Islamic World's nominal GDP currently stands at a grand total of $6.25 trillion dollars, spread over a population of 1.6 billion people. For comparison India, which has an approximately similar sized population to the Islamic world (1.3 billion), has an economy worth $2.45 trillion dollars.[1] Much of the Muslim world still lags behind countries such as Japan ($4.8 trillion dollars[2]) and the United States ($18.6 trillion dollars) however, who have much smaller populations (127 million;[3] 323 million respectively[4]) but are highly industrialised, as well place a particular emphasis on science. Additionally China's current economy is worth $11.8 trillion dollars (with a population of 1.41 billion.[5][6] Progress, however, is more rapid in some countries than others; for example Indonesia (population 261 million) became the first country in the Islamic world to surpass the trillion dollar mark in 2017,[7] with Turkey closely behind at almost achieving this target (which currently stands at $841.2 billion dollars). Malaysia too is a laudable case, which is set to reach a nominal GDP of $500 billion dollars by 2022,[8] with a population of only 34.2 million people.[9] Significantly, these more advanced Muslim economies are not solely oil-based economies (with the exception of Saudi Arabia; $678 billion dollars and with a population of 32.4 million),[9] but have rapidly been expanding in economic complexity over the years. Perhaps far more exciting is that the macroeconomic trends show the Islamic world will accrue a total nominal GDP wealth of $8.85 trillion dollars by 2022 (representing an average growth rate of 7% to 2022). This entire analysis has been taken from the International Monetary Fund (IMF) who's projections are updated as of October 2017. For unknown reasons some countries were left out (notably Pakistan—most likely because of CPEC—and Egypt—most likely because of it's dictatorship crisis).