G20 vs Japan: Gross Domestic Product, GDP in millions constant 2021 international $

G20
160.61 million
in 2027
Japan
5.84 million
in 2027
G20 rank
2nd
Japan rank
5th

Gross Domestic Product, GDP in millions constant 2021 international $ over time

  • G20
  • Japan
050.0M100.0M150.0M199120092027

How they compare

G20 currently reports 160.61 million against 5.84 million in Japan, a difference of 154.77 million.

That makes G20's figure about 27.5 times Japan's.

Across all 37 years both countries report, G20 has been ahead every year.

G20 ranks 2nd and Japan ranks 5th of 87 groups.

G20 has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade G20 Japan Difference Ahead
1990s 56.78 million 4.69 million 52.08 million G20
2000s 78.89 million 5.14 million 73.74 million G20
2010s 110.14 million 5.47 million 104.67 million G20
2020s 143.68 million 5.68 million 138.00 million G20

Averages of every year both report within each decade.

Frequently asked questions

Which has higher gross domestic product, gdp in millions constant 2021 international $, G20 or Japan?
G20, at 160.61 million against 5.84 million in Japan as of 2027.
What is the difference in gross domestic product, gdp in millions constant 2021 international $ between G20 and Japan?
154.77 million, with G20 ahead.
How many years of comparable data are there for G20 and Japan?
37 years are reported by both, from 1991 to 2027.
How do G20 and Japan rank globally for gross domestic product, gdp in millions constant 2021 international $?
G20 ranks 2nd and Japan ranks 5th of 87 groups.
Where does this data come from?
International Labour Organization, published as Gross Domestic Product, GDP in millions constant 2021 international $ at PPP (ILO modelled estimates). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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G20 vs Japan: Gross Domestic Product, GDP in millions constant 2021 international $. Statizoid, drawing on International Labour Organization. Retrieved 16 September 2026, from https://economy.statizoid.com/compare/gross-domestic-product-gdp-in-millions-constant-2021-international-at-ppp-ilo-modelled/g20/japan/

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About this data

Indicator
Gross Domestic Product, GDP in millions constant 2021 international $ at PPP (ILO modelled estimates)
Source
International Labour Organization
Licence
ILO Terms of Use (attribution required)
Coverage
276 places, 10,188 data points, 1991–2027
Last refreshed

Gross Domestic Product (GDP), Purchasing Power Parity (millions of PPP, constant 2021 international dollars) is a measure to assess the total economic output of a country, adjusted for differences in the purchasing power of the different currencies relative to the US dollar. It is derived from the World Development Indicators of the World Bank. For more information, refer to the ILO Modelled Estimates (ILOEST) database description.