Samoa vs Singapore: GDP, PPP (constant 2021 international $), per unit of GDP

Samoa
1.36 constant 2021 international $ per US$ of GDP
in 2025
Singapore
1.41 constant 2021 international $ per US$ of GDP
in 2025
Samoa rank
143rd
Singapore rank
140th

GDP, PPP (constant 2021 international $), per unit of GDP over time

  • Samoa
  • Singapore
12345199020072025

How they compare

Singapore currently reports 1.41 constant 2021 international $ per US$ of GDP against 1.36 constant 2021 international $ per US$ of GDP in Samoa, a difference of 0.05 constant 2021 international $ per US$ of GDP.

The two have swapped places 3 times across 36 shared years of data; in 1990 it was Samoa ahead.

Samoa ranks 143rd and Singapore ranks 140th of 200 countries.

Across the 4 decades both report, Samoa averaged higher in 1 and Singapore in 3.

Head to head by decade

Decade Samoa Singapore Difference Ahead
1990s 3.87 constant 2021 international $ per US$ of GDP 2.88 constant 2021 international $ per US$ of GDP 0.9902 constant 2021 international $ per US$ of GDP Samoa
2000s 2.59 constant 2021 international $ per US$ of GDP 2.7 constant 2021 international $ per US$ of GDP 0.1123 constant 2021 international $ per US$ of GDP Singapore
2010s 1.64 constant 2021 international $ per US$ of GDP 1.89 constant 2021 international $ per US$ of GDP 0.2589 constant 2021 international $ per US$ of GDP Singapore
2020s 1.52 constant 2021 international $ per US$ of GDP 1.56 constant 2021 international $ per US$ of GDP 0.044 constant 2021 international $ per US$ of GDP Singapore

Averages of every year both report within each decade.

Frequently asked questions

Which has higher gdp, ppp (constant 2021 international $), per unit of gdp, Samoa or Singapore?
Singapore, at 1.41 constant 2021 international $ per US$ of GDP against 1.36 constant 2021 international $ per US$ of GDP in Samoa as of 2025.
What is the difference in gdp, ppp (constant 2021 international $), per unit of gdp between Samoa and Singapore?
0.05 constant 2021 international $ per US$ of GDP, with Singapore ahead.
How many years of comparable data are there for Samoa and Singapore?
36 years are reported by both, from 1990 to 2025.
How do Samoa and Singapore rank globally for gdp, ppp (constant 2021 international $), per unit of gdp?
Samoa ranks 143rd and Singapore ranks 140th of 200 countries.
Where does this data come from?
Statizoid (derived), published as GDP, PPP (constant 2021 international $), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Samoa vs Singapore: GDP, PPP (constant 2021 international $), per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 28 September 2026, from https://economy.statizoid.com/compare/gdp-ppp-constant-2021-international-per-unit-of-gdp/samoa/singapore/

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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.