PPP conversion factor in Tonga in 2025 — 1.808 per int$. Ranked 120 in the world out of 185. Since 1990, the indicator has risen by 192.6%.
1990–2025 · local units per international $
| Year | per int$ | Change | Change, % |
|---|---|---|---|
| 2025 | 1.808 | +0.003 | +0.15% |
| 2024 | 1.805 | +0.096 | +5.63% |
| 2023 | 1.709 | +0.059 | +3.59% |
| 2022 | 1.65 | +0.032 | +1.95% |
| 2021 | 1.618 | −0.04 | −2.42% |
| 2020 | 1.658 | −0.023 | −1.34% |
| 2019 | 1.681 | +0.076 | +4.76% |
| 2018 | 1.604 | +0.055 | +3.55% |
| 2017 | 1.549 | +0.056 | +3.72% |
| 2016 | 1.494 | +0.029 | +2% |
| 2015 | 1.464 | +0.059 | +4.23% |
| 2014 | 1.405 | −0.024 | −1.67% |
| 2013 | 1.429 | −0.058 | −3.93% |
| 2012 | 1.487 | +0.035 | +2.38% |
| 2011 | 1.453 | −0.023 | −1.56% |
| 2010 | 1.476 | +0.089 | +6.43% |
| 2009 | 1.387 | +0.057 | +4.27% |
| 2008 | 1.33 | +0.032 | +2.46% |
| 2007 | 1.298 | +0.021 | +1.65% |
| 2006 | 1.277 | +0.164 | +14.71% |
| 2005 | 1.113 | +0.053 | +4.96% |
| 2004 | 1.06 | +0.056 | +5.57% |
| 2003 | 1.005 | +0.085 | +9.24% |
| 2002 | 0.92 | +0.052 | +5.97% |
| 2001 | 0.868 | +0.015 | +1.73% |
| 2000 | 0.853 | +0.003 | +0.37% |
| 1999 | 0.85 | +0.051 | +6.36% |
| 1998 | 0.799 | +0.013 | +1.68% |
| 1997 | 0.786 | −0.014 | −1.81% |
| 1996 | 0.8 | +0.009 | +1.12% |
| 1995 | 0.791 | −0.045 | −5.41% |
| 1994 | 0.837 | +0.165 | +24.51% |
| 1993 | 0.672 | −0.015 | −2.25% |
| 1992 | 0.687 | +0.033 | +5.05% |
| 1991 | 0.654 | +0.036 | +5.88% |
| 1990 | 0.618 | — | — |
The same indicator for neighboring countries — with links to their pages
The number of units of national currency that buys the same set of goods and services inside the country as one dollar buys in the United States. Set against the market exchange rate it gives a measure of how far a currency is undervalued or overvalued: if the PPP factor is half the exchange rate, domestic prices are half the American ones, and any income in that country is worth twice what conversion at the exchange rate shows.
Important: There are no aggregates for country groups: the quantity is expressed in different currencies, and averaging it across countries is meaningless. Its ratio to the market exchange rate is the very adjustment from which all PPP indicators follow.
Source: World Development Indicators (World Bank), license CC BY 4.0.
The average annual official exchange rate of the national currency per one US dollar.
Economy GDP at purchasing power parityThe size of the economy in international dollars — adjusted for price differences between countries.
Economy GNI at purchasing power parityThe income of a country's residents converted by purchasing power rather than by the exchange rate.
Economy GDP per capita at PPPThe soundest measure of living standards: income per person adjusted for prices.
