"Economy","2025 estimate (US$ bn)","2040 projection (US$ bn)","Change in nominal value (%)","Data period","Source URLs"
"United States","30,551","52,852","73.0","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"China","19,434","47,877","146.4","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"India","4,134","14,092","240.9","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Germany","4,991","7,783","55.9","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"United Kingdom","3,961","6,784","71.3","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Japan","4,233","5,922","39.9","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"France","3,344","5,203","55.6","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Indonesia","1,438","4,182","190.8","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Brazil","2,263","3,943","74.2","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Canada","2,274","3,818","67.9","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Italy","2,531","3,771","49.0","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Spain","1,882","3,373","79.2","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Korea","1,842","3,297","79.0","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Australia","1,833","3,289","79.4","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Mexico","1,862","3,268","75.5","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Russia","2,537","3,247","28.0","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Saudi Arabia","1,268","2,890","127.9","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Netherlands","1,315","2,142","62.9","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Türkiye","1,573","2,053","30.5","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"
"Argentina","686","2,009","192.9","2040 projections · Cebr December 2025 forecast","https://cebr.com/wp-content/uploads/2025/12/WELT-2026.pdf | https://www.imf.org/en/Publications/fandd/issues/Series/Back-to-Basics/gross-domestic-product-gdp | https://datahelpdesk.worldbank.org/knowledgebase/articles/114945-why-are-some-series-shown-in-purchasing-power-pari | https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026 | https://cebr.com/world-economic-league-table/"