$100 in 2018 → $269.82 in 2050


Prediction: Value of $100 from 2018 to 2050

$100 in 2018 is equivalent in purchasing power to about $269.82 in 2050, an increase of $169.82 over 32 years. The dollar had an average inflation rate of 3.15% per year between 2018 and 2050, producing a cumulative price increase of 169.82%. The buying power of $100 in 2018 is predicted to be equivalent to $269.82 in 2050.

This calculation is based on future inflation assumption of 3.00% per year. Use the calculator on the left to change this prediction. Or, use the annual inflation rate calculator to view inflation in the past.

Projected inflation, 2018 to 2050
Cumulative price change169.82%
Average inflation rate3.15%
Converted amount ($100 base)$269.82
Price difference ($100 base)$169.82
CPI in 2018251.230
Inflation in 20182.49%
$100 in 2018$269.82 in 2050

USD inflation since 2018
Annual Rate, the Bureau of Labor Statistics CPI

Buying power of $100 in 2050

This chart shows a calculation of buying power equivalence for $100 in 2018 (price index tracking began in 1635).

For example, if you started with $100, you would need to end with $269.82 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

Future inflation is estimated at 3.00%.

When $100 is equivalent to $269.82 over time, that means that the "real value" of a single U.S. dollar decreases over time. In other words, a dollar will pay for fewer items at the store.

This effect explains how inflation erodes the value of a dollar over time. By calculating the value in 2018 dollars, the chart below shows how $100 is worth less over 32 years.

This table shows the results of the inflation prediction, with base values from the Bureau of Labor Statistics:

Dollar inflation: 2018-2050
YearDollar ValueInflation Rate
Click to show 26 more rows

Comparison to S&P 500 Index

The average inflation rate of 3.15% has a compounding effect between 2018 and 2050. As noted above, this yearly inflation rate compounds to produce an overall price difference of 169.82% over 32 years.

To help put this inflation into perspective, if we had invested $100 in the S&P 500 index in 2018, our investment would be nominally worth approximately $148.36 in 2050. This is a return on investment of 48.36%, with an absolute return of $48.36 on top of the original $100.

These numbers are not inflation adjusted, so they are considered nominal. In order to evaluate the real return on our investment, we must calculate the return with inflation taken into account.

The compounding effect of inflation would account for 100.67% of returns ($149.36) during this period. This means the inflation-adjusted real return of our $100 investment is $-101.00. You may also want to account for capital gains tax, which would take your real return down to around $-86 for most people.

Investment in S&P 500 Index, 2018-2050
Original AmountFinal AmountChange
Inflation Adjusted

Information displayed above may differ slightly from other S&P 500 calculators. Minor discrepancies can occur because we use the latest CPI data for inflation, annualized inflation numbers for previous years, and we compute S&P price and dividends from January of 2018 to latest available data for 2050 using average monthly close price.

For more details on the S&P 500 between 2018 and 2050, see the stock market returns calculator.

Data source & citation

Raw data for these calculations comes from the Bureau of Labor Statistics' (CPI), established in 1913. Inflation data from 1634 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University and from the American Antiquarian Society.

You may use the following MLA citation for this page: “2050 Inflation Prediction | Future Inflation Calculator.” Official Inflation Data, Alioth Finance, 14 Aug. 2022, https://www.officialdata.org/2018-dollars-in-2050?amount=100&future_pct=0.03.

Special thanks to QuickChart for their chart image API, which is used for chart downloads.

Ian Webster

About the author

Ian Webster is an engineer and data expert based in San Mateo, California. He has worked for Google, NASA, and consulted for governments around the world on data pipelines and data analysis. Disappointed by the lack of clear resources on the impacts of inflation on economic indicators, Ian believes this website serves as a valuable public tool. Ian earned his degree in Computer Science from Dartmouth College.

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» Read more about inflation and investment.

Projected inflation, 2018 to 2050
Cumulative price change169.82%
Average inflation rate3.15%
Converted amount ($100 base)$269.82
Price difference ($100 base)$169.82
CPI in 2018251.230
Inflation in 20182.49%
$100 in 2018$269.82 in 2050