GDP, PPP (constant 2021 international $), per unit of GDP in Tonga

Tonga: GDP, PPP (constant 2021 international $), per unit of GDP was 1.13 constant 2021 international $ per US$ of GDP in 2025. ▼ Falling

Latest (2025)
1.13 constant 2021 international $ per US$ of GDP
Change on year
down 2.0%
World rank
165th
of 200 countries
All-time high
3.94 constant 2021 international $ per US$ of GDP
in 1990
All-time low
1.13 constant 2021 international $ per US$ of GDP
in 2025
Years of data
36
1990–2025

GDP, PPP (constant 2021 international $), per unit of GDP in Tonga, 1990–2025

12341990200720251990: 3.9 constant 2021 international $ per US$ of GDP1991: 3.6 constant 2021 international $ per US$ of GDP1992: 3.5 constant 2021 international $ per US$ of GDP1993: 3.6 constant 2021 international $ per US$ of GDP1994: 2.7 constant 2021 international $ per US$ of GDP1995: 2.6 constant 2021 international $ per US$ of GDP1996: 2.5 constant 2021 international $ per US$ of GDP1997: 2.6 constant 2021 international $ per US$ of GDP1998: 2.9 constant 2021 international $ per US$ of GDP1999: 2.9 constant 2021 international $ per US$ of GDP2000: 2.9 constant 2021 international $ per US$ of GDP2001: 3.3 constant 2021 international $ per US$ of GDP2002: 3.5 constant 2021 international $ per US$ of GDP2003: 3.1 constant 2021 international $ per US$ of GDP2004: 2.7 constant 2021 international $ per US$ of GDP2005: 2.4 constant 2021 international $ per US$ of GDP2006: 2.1 constant 2021 international $ per US$ of GDP2007: 2 constant 2021 international $ per US$ of GDP2008: 1.8 constant 2021 international $ per US$ of GDP2009: 1.9 constant 2021 international $ per US$ of GDP2010: 1.6 constant 2021 international $ per US$ of GDP2011: 1.5 constant 2021 international $ per US$ of GDP2012: 1.3 constant 2021 international $ per US$ of GDP2013: 1.4 constant 2021 international $ per US$ of GDP2014: 1.5 constant 2021 international $ per US$ of GDP2015: 1.5 constant 2021 international $ per US$ of GDP2016: 1.7 constant 2021 international $ per US$ of GDP2017: 1.6 constant 2021 international $ per US$ of GDP2018: 1.5 constant 2021 international $ per US$ of GDP2019: 1.4 constant 2021 international $ per US$ of GDP2020: 1.5 constant 2021 international $ per US$ of GDP2021: 1.4 constant 2021 international $ per US$ of GDP2022: 1.3 constant 2021 international $ per US$ of GDP2023: 1.2 constant 2021 international $ per US$ of GDP2024: 1.2 constant 2021 international $ per US$ of GDP2025: 1.1 constant 2021 international $ per US$ of GDP

Source: Statizoid (derived). Measured in constant 2021 international $ per US$ of GDP.

Analysis

The most recent figure for gdp, ppp (constant 2021 international $), per unit of gdp in Tonga is 1.13 constant 2021 international $ per US$ of GDP, measured in 2025. That is the lowest value across all 36 years on record.

That represents a change of down 2.0% on the previous year and down 24.6% over ten years.

Over the whole period, gdp, ppp (constant 2021 international $), per unit of gdp in Tonga peaked at 3.94 constant 2021 international $ per US$ of GDP in 1990 and was at its lowest, 1.13 constant 2021 international $ per US$ of GDP, in 2025.

Tonga ranks 165th of 200 countries on this measure, in the bottom quarter.

The long-run direction has been consistently falling across the 36 years of available data.

GDP, PPP (constant 2021 international $), per unit of GDP in Tonga, year by year

Annual values for GDP, PPP (constant 2021 international $), per unit of GDP in Tonga, 1990 to 2025.
Year constant 2021 international $ per US$ of GDP Change
1990 3.94 constant 2021 international $ per US$ of GDP —
1991 3.6 constant 2021 international $ per US$ of GDP -8.6%
1992 3.48 constant 2021 international $ per US$ of GDP -3.3%
1993 3.58 constant 2021 international $ per US$ of GDP +2.7%
1994 2.65 constant 2021 international $ per US$ of GDP -25.8%
1995 2.64 constant 2021 international $ per US$ of GDP -0.3%
1996 2.49 constant 2021 international $ per US$ of GDP -5.9%
1997 2.56 constant 2021 international $ per US$ of GDP +2.7%
1998 2.93 constant 2021 international $ per US$ of GDP +14.8%
1999 2.89 constant 2021 international $ per US$ of GDP -1.7%
2000 2.91 constant 2021 international $ per US$ of GDP +0.9%
2001 3.34 constant 2021 international $ per US$ of GDP +14.8%
2002 3.46 constant 2021 international $ per US$ of GDP +3.5%
2003 3.13 constant 2021 international $ per US$ of GDP -9.6%
2004 2.69 constant 2021 international $ per US$ of GDP -14.1%
2005 2.35 constant 2021 international $ per US$ of GDP -12.5%
2006 2.06 constant 2021 international $ per US$ of GDP -12.3%
2007 1.97 constant 2021 international $ per US$ of GDP -4.5%
2008 1.79 constant 2021 international $ per US$ of GDP -9.1%
2009 1.87 constant 2021 international $ per US$ of GDP +4.6%
2010 1.61 constant 2021 international $ per US$ of GDP -14.1%
2011 1.52 constant 2021 international $ per US$ of GDP -5.5%
2012 1.35 constant 2021 international $ per US$ of GDP -11.3%
2013 1.41 constant 2021 international $ per US$ of GDP +4.7%
2014 1.47 constant 2021 international $ per US$ of GDP +4.5%
2015 1.5 constant 2021 international $ per US$ of GDP +1.9%
2016 1.67 constant 2021 international $ per US$ of GDP +10.8%
2017 1.57 constant 2021 international $ per US$ of GDP -5.6%
2018 1.47 constant 2021 international $ per US$ of GDP -6.3%
2019 1.43 constant 2021 international $ per US$ of GDP -2.7%
2020 1.46 constant 2021 international $ per US$ of GDP +1.7%
2021 1.41 constant 2021 international $ per US$ of GDP -3.4%
2022 1.29 constant 2021 international $ per US$ of GDP -8.7%
2023 1.24 constant 2021 international $ per US$ of GDP -3.2%
2024 1.16 constant 2021 international $ per US$ of GDP -7.1%
2025 1.13 constant 2021 international $ per US$ of GDP -2.0%

Tonga compared with similar countries

  • Tonga's 1.13 constant 2021 international $ per US$ of GDP is below the median for upper middle income countries, which is 2.08 constant 2021 international $ per US$ of GDP, 54% of the median. (58 countries reporting)
  • Tonga's 1.13 constant 2021 international $ per US$ of GDP is below the median for East Asia & Pacific, which is 1.48 constant 2021 international $ per US$ of GDP, 77% of the median. (31 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1990s 3.08 constant 2021 international $ per US$ of GDP 2.49 constant 2021 international $ per US$ of GDP 3.94 constant 2021 international $ per US$ of GDP 10
2000s 2.56 constant 2021 international $ per US$ of GDP 1.79 constant 2021 international $ per US$ of GDP 3.46 constant 2021 international $ per US$ of GDP 10
2010s 1.5 constant 2021 international $ per US$ of GDP 1.35 constant 2021 international $ per US$ of GDP 1.67 constant 2021 international $ per US$ of GDP 10
2020s 1.28 constant 2021 international $ per US$ of GDP 1.13 constant 2021 international $ per US$ of GDP 1.46 constant 2021 international $ per US$ of GDP 6

Countries ranked near Tonga

  1. 162 San Marino 1.19 constant 2021 international $ per US$ of GDP compare
  2. 163 Aruba 1.18 constant 2021 international $ per US$ of GDP compare
  3. 164 Solomon Islands 1.14 constant 2021 international $ per US$ of GDP compare
  4. 166 France 1.13 constant 2021 international $ per US$ of GDP compare
  5. 167 Sint Maarten (Dutch part) 1.12 constant 2021 international $ per US$ of GDP compare
  6. 168 Puerto Rico 1.1 constant 2021 international $ per US$ of GDP compare

See the full ranking of 247 places →

More economy & growth data for Tonga

All data for Tonga →

Frequently asked questions

What is gdp, ppp (constant 2021 international $), per unit of gdp in Tonga?
Gdp, ppp (constant 2021 international $), per unit of gdp in Tonga was 1.13 constant 2021 international $ per US$ of GDP in 2025, according to Statizoid (derived).
What is the highest gdp, ppp (constant 2021 international $), per unit of gdp recorded in Tonga?
The highest recorded value was 3.94 constant 2021 international $ per US$ of GDP in 1990.
What is the lowest gdp, ppp (constant 2021 international $), per unit of gdp recorded in Tonga?
The lowest recorded value was 1.13 constant 2021 international $ per US$ of GDP in 2025.
How does Tonga rank for gdp, ppp (constant 2021 international $), per unit of gdp?
Tonga ranks 165th out of 200 countries with data for 2025.
Is gdp, ppp (constant 2021 international $), per unit of gdp rising or falling in Tonga?
Over the last ten years it is down 24.6%. The long-run trend across the full record is falling.
Where does this Tonga data come from?
The figures come from Statizoid (derived), published as part of GDP, PPP (constant 2021 international $), per unit of GDP. Statizoid updates them automatically from the source API.

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GDP, PPP (constant 2021 international $), per unit of GDP in Tonga. Statizoid, drawing on Statizoid (derived). Retrieved 28 September 2026, from https://economy.statizoid.com/stat/gdp-ppp-constant-2021-international-per-unit-of-gdp/tonga/

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How this figure is calculated

GDP, PPP (constant 2021 international $) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.

GDP, PPP (constant 2021 international $) ÷ GDP (current US$)

Computed from

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

About this data

Indicator
GDP, PPP (constant 2021 international $), per unit of GDP
Unit
constant 2021 international $ per US$ of GDP
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
247 places, 8,673 data points, 1990–2025
Last refreshed

GDP, PPP (constant 2021 international $) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.