South Africa vs Tonga: GNI (constant 2015 US$), per unit of GDP

South Africa
0.8768 constant 2015 US$ per US$ of GDP
in 2025
Tonga
0.8733 constant 2015 US$ per US$ of GDP
in 2024
South Africa rank
54th
Tonga rank
56th

GNI (constant 2015 US$), per unit of GDP over time

  • South Africa
  • Tonga
0246196019922025

How they compare

South Africa currently reports 0.8768 constant 2015 US$ per US$ of GDP against 0.8733 constant 2015 US$ per US$ of GDP in Tonga, a difference of 0.0035 constant 2015 US$ per US$ of GDP.

The two have swapped places 1 time across 31 shared years of data; in 1994 it was Tonga ahead.

South Africa ranks 54th and Tonga ranks 56th of 161 countries.

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

Head to head by decade

Decade South Africa Tonga Difference Ahead
1990s 1.16 constant 2015 US$ per US$ of GDP 1.91 constant 2015 US$ per US$ of GDP 0.7479 constant 2015 US$ per US$ of GDP Tonga
2000s 1.09 constant 2015 US$ per US$ of GDP 1.74 constant 2015 US$ per US$ of GDP 0.6434 constant 2015 US$ per US$ of GDP Tonga
2010s 0.8603 constant 2015 US$ per US$ of GDP 1.06 constant 2015 US$ per US$ of GDP 0.1985 constant 2015 US$ per US$ of GDP Tonga
2020s 0.9347 constant 2015 US$ per US$ of GDP 0.9775 constant 2015 US$ per US$ of GDP 0.0429 constant 2015 US$ per US$ of GDP Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher gni (constant 2015 us$), per unit of gdp, South Africa or Tonga?
South Africa, at 0.8768 constant 2015 US$ per US$ of GDP against 0.8733 constant 2015 US$ per US$ of GDP in Tonga as of 2025.
What is the difference in gni (constant 2015 us$), per unit of gdp between South Africa and Tonga?
0.0035 constant 2015 US$ per US$ of GDP, with South Africa ahead.
How many years of comparable data are there for South Africa and Tonga?
31 years are reported by both, from 1994 to 2024.
How do South Africa and Tonga rank globally for gni (constant 2015 us$), per unit of gdp?
South Africa ranks 54th and Tonga ranks 56th of 161 countries.
Where does this data come from?
Statizoid (derived), published as GNI (constant 2015 US$), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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South Africa vs Tonga: GNI (constant 2015 US$), per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://economy.statizoid.com/compare/gni-constant-2015-us-per-unit-of-gdp/south-africa/tonga/

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About this data

Indicator
GNI (constant 2015 US$), per unit of GDP
Unit
constant 2015 US$ per US$ of GDP
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
187 places, 6,858 data points, 1960–2025
Last refreshed

GNI (constant 2015 US$) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.