Finance

Home Inflation Adjusted Value Calculator (20 Years)

Estimate what an amount will be worth after inflation. This home version uses a 20-year planning term as its starting point.

The Future amount is the larger sum needed after 20 years to buy the same things as the starting amount buys today, so it shows how much rising prices reduce the buying power of your money over time.

Formula

Future amount equals amount times one plus inflation rate to the power of years.

How it works

Inflation means the same amount buys less over time, so future prices are higher.

Worked example

Amount $10,000, inflation rate 3 percent, term 20 years. Using the page formula, future amount equals $10,000 times 1.03 to the power of 20, which is $18,061.11. That is the calculator's own output for these defaults. The increase is $18,061.11 minus $10,000, which is $8,061.11, so a home cost priced at $10,000 today would need $18,061.11 in 20 years to buy the same thing if inflation ran at 3 percent every year.

Looked at the other way, $10,000 kept aside without any return would buy only about $5,536.76 worth of today's goods after 20 years at 3 percent inflation, because $10,000 divided by 1.03 to the power of 20 is $5,536.76. After 20 years, nearly half the buying power is gone.

Who this term suits for a home household: a home household looking across a typical mortgage-length horizon of about 20 years, for example owners who bought young and want to know what today's $10,000 of home spending, such as a new kitchen or a full rewire, would cost if the same work were needed again in 20 years.

FAQs

What does inflation do to money?
Inflation reduces what money can buy, so a sum today will need to be larger in future to buy the same things.

Is this home calculator exact?
No, it is an estimate for planning only, based on the numbers you enter.

Are these figures financial advice?
No, they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Why is the 20-year figure $18,061.11, not just $10,000 plus 20 times 3 percent?
Because inflation compounds. Adding 3 percent twenty times on the original sum would give $16,000, but each year's rise applies to the already higher price, so $10,000 times 1.03 to the power of 20 is $18,061.11.

What is $10,000 worth after 20 years at 3 percent inflation?
About $5,536.76 in today's buying power, because $10,000 divided by 1.03 to the power of 20 is $5,536.76. Money left idle for 20 years loses nearly half of what it can buy.

Can a 20-year home plan rely on one fixed inflation rate?
No. Twenty years will include years well above and well below 3 percent, so $18,061.11 is a planning estimate for comparing options, not a forecast of the actual future price.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.