Country GDP Quiz

How to play

1. Two countries appear side by side (stacked on a phone). The first shows its total GDP; the second keeps its value hidden.
2. Decide whether the second one is higher or lower and press Higher or Lower.
3. The hidden value counts up and your answer is judged. When you are right, the second card moves across and a new one takes its place.
4. One wrong answer ends the run. There is no timer, and values stay fixed for the whole run. Countries without a value for this measure sit out, and two countries whose values read the same are never paired.
5. Your result is saved in this browser. Once enough people have played a game, the results also show how your score ranks, and you can copy or share an image of your result, or replay.

Understanding the comparison

This is largely population multiplied by productivity, so big countries win most pairs. The interesting cases are mid-sized rich countries against large poorer ones. A small, wealthy country rarely outranks a large one here, which is the opposite of the per-person game — playing both back to back makes the difference obvious.

Nominal GDP and PPP answer different questions

The game uses GDP in current US dollars: the value of production converted at market exchange rates. A currency movement can change the dollar figure even without a matching change in the quantity of goods and services produced.

Purchasing power parity (PPP) uses price comparisons to account for what money buys in different economies. It is useful for comparing the volume of economic activity across places with different price levels. A PPP ranking can therefore differ from the nominal ranking used here.

Total GDP also differs from GDP per person. A large population can support a large total while output per resident remains much lower. Neither figure describes how income is distributed. For this game, compare totals for the stated data period; for the per-person question, choose GDP per Person.

World Bank: why use PPP?

How this measure is defined

Total gross domestic product in current US dollars at market exchange rates, measuring output in one year rather than accumulated wealth. Exchange-rate swings move these figures between years without any change in real output, so year-to-year comparisons of the same country are unreliable.

Sources

Source: World Bank · Data period: 2025 · Collected: 2026-10-01 (UTC)

Total gross domestic product in current US dollars at market exchange rates. Large populations lift this figure even where income per person is low.

The collection date tells you when we retrieved the source, not when every underlying observation was made. A failed refresh does not advance that date. For comparisons, the snapshot loaded for your run supplies the answers.

• World Bank