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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

HK$ 1,000,000
20 year
3%

20 Purchasing power in

Inflation-adjusted real value

HK$553,676

Equivalent to HK$1,000,000 of today's purchasing power

Loss of purchasing power

HK$446,324

of the original amount44.6%

Loss percentage

44.6%

Amount needed in the future

HK$1,806,111

equals HK$ today1,000,000

Purchasing power erosion curve

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.

FAQs

How does inflation affect my savings?

If your savings return is lower than the inflation rate, your real purchasing power falls. Even though the amount grows, you can buy less with it.

What is purchasing power?

Purchasing power is the quantity of goods or services that a sum of money can buy. Inflation causes purchasing power to decline over time.

What has Hong Kong's inflation rate been recently?

Hong Kong's overall inflation rate has generally fluctuated between 1% and 3% in recent years, but price increases vary considerably across different goods and services.

How can I combat inflation?

Invest in assets whose returns outperform inflation over the long term, such as stocks, funds or real estate, and avoid holding large amounts of low-interest cash for long periods.

What can the calculator do?

It can calculate the amount needed in the future for equivalent purchasing power, or conversely the present-day value of a future sum.

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.