Why 100,000 means different things across countries
Separate currency units, purchasing power and rank before comparing identical numbers.
By RankMyIncome · Updated 22 October 2026
Ask which currency
A number without a currency is not a usable comparison. 100,000 won, 100,000 yen and 100,000 US dollars are different amounts. Changing the main calculator’s country changes the input’s currency context; it does not convert the typed number. This is why the interface keeps a visible currency label and switching-country notice.
Choose the operation
A market exchange-rate conversion asks how currencies trade. A PPP conversion compares broad national purchasing power. A percentile calculation describes position within a distribution. RankMyIncome supplies the latter two using its existing data; it does not provide a live market-rate converter. None of these alone is a calculation of disposable income after expenses.
A comparison you can reproduce
Take income in country A, divide by A’s stored PPP factor and multiply by B’s factor. Compare the original amount with A’s thresholds and the converted amount with B’s. The worldwide ranks should match because both inputs represent the same common-unit amount. National ranks can differ because their reference distributions differ.
Keep personal costs separate
Housing, taxes, family circumstances and spending preferences can dominate an actual budget. A historical national factor does not capture all of them. Treat the result as a statistical comparison with named assumptions and years. Compare two countries and read the PPP guide for the common-unit arithmetic.
Sources and calculation notes
Numerical examples use the public dataset shared by all tools. Definitions: WID methodology and codes dictionary. Calculations: RankMyIncome source code. Hypothetical scenarios illustrate arithmetic, not observed market salaries.