Inflation Purchasing Power Calculator
See how inflation erodes the buying power of cash and what the same amount will be able to buy in the future.
Inflation inputs
20 Purchasing power in
Inflation-adjusted real value
Equivalent to HK$1,000,000 of today's purchasing power
Loss of purchasing power
of the original amount44.6%
Loss percentage
Amount needed in the future
equals HK$ today1,000,000
ReminderHolding cash for the long term can be eroded by inflation. Even at just 3% inflation, purchasing power falls by about 45% in 20 years. Sensible investing can help preserve or grow real value.
Understanding Inflation and Purchasing Power
Inflation is an important economic concept that describes a sustained rise in the general price level, causing money's purchasing power to fall. Hong Kong people feel its impact every day, whether on transport, meals, school fees or medical expenses. If your savings or investment returns are lower than inflation, your wealth is actually shrinking in real terms, which is why relying solely on current accounts rarely preserves value.
Understanding inflation and purchasing power is especially important for retirement planning. For example, the purchasing power of HK$1 million today may be equivalent to only about HK$550,000 in 20 years at an average annual inflation rate of 3%. In other words, if you set a retirement target based on today's spending, the amount actually needed in the future will be higher. Ignoring inflation can cause you to underestimate future financial needs.
HK FinBox's inflation and purchasing power calculator lets you enter a current amount, inflation rate and number of years to calculate the future amount needed for the same purchasing power, or the present value of a future sum. The calculator turns the abstract average annual inflation rate into a concrete monetary impact.
When making long-term savings and investment plans, use the \"real rate of return\" (nominal return minus inflation) as the evaluation benchmark. Only if investment returns outperform inflation over the long term can purchasing power be maintained or grown. Also review living expenses and adjust your budget regularly - an effective way to combat inflation's erosion.
References
Rules and links last reviewed: 26 July 2026 · The sources above are for reference only; please refer to the latest official announcements from the relevant organisations.
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Client-side only: All data is calculated on your device and is not uploaded to any server. Results are for reference only and do not constitute professional financial or legal advice.