Inflation in 1910 and its effect on dollar value
$1 in 1909 is equivalent in purchasing power to about $1.04 in 1910. The dollar had an average inflation rate of 4.40% per year between 1909 and 1910, producing a cumulative price increase of 4.40%. Purchasing power decreased by 4.40% in 1910 compared to 1909. On average, you would have to spend 4.40% more money in 1910 than in 1909 for the same item.
This means that prices in 1910 are 1.04 times as high as average prices since 1909, according to the Bureau of Labor Statistics consumer price index.
The inflation rate in 1909 was -1.09%. The inflation rate in 1910 was 4.40%. The 1910 inflation rate is higher compared to the average inflation rate of 3.12% per year between 1910 and 2024.
Inflation rate is calculated by change in the consumer price index (CPI). The CPI in 1910 was 9.50. It was 9.10 in the previous year, 1909. The difference in CPI between the years is used by the Bureau of Labor Statistics to officially determine inflation.
Contents
⌃
| Average inflation rate | 4.40% |
| Converted amount $1 base | $1.04 |
| Price difference $1 base | $0.04 |
| CPI in 1909 | 9.100 |
| CPI in 1910 | 9.500 |
| Inflation in 1909 | -1.09% |
| Inflation in 1910 | 4.40% |
| $1 in 1909 | $1.04 in 1910 |
Inflation by Country
Inflation can also vary widely by country. For comparison, in the UK £1.00 in 1909 would be equivalent to £1.01 in 1910, an absolute change of £0.01 and a cumulative change of 1.05%.
Compare these numbers to the US's overall absolute change of $0.04 and total percent change of 4.40%.
Inflation by Spending Category
CPI is the weighted combination of many categories of spending that are tracked by the government. Breaking down these categories helps explain the main drivers behind price changes.
This chart shows the average rate of inflation for select CPI categories between 1909 and 1910.
Compare these values to the overall average of 4.40% per year:
| Category | Avg Inflation (%) | Total Inflation (%) | $1 in 1909 → 1910 |
|---|---|---|---|
| Food and beverages | 0.00 | 0.00 | 1.00 |
| Housing | 0.00 | 0.00 | 1.00 |
| Apparel | 0.00 | 0.00 | 1.00 |
| Transportation | 0.00 | 0.00 | 1.00 |
| Medical care | 0.00 | 0.00 | 1.00 |
| Recreation | 0.00 | 0.00 | 1.00 |
| Education and communication | 0.00 | 0.00 | 1.00 |
| Other goods and services | 0.00 | 0.00 | 1.00 |
For all these visualizations, it's important to note that not all categories may have been tracked since 1909. This table and charts use the earliest available data for each category.
How to calculate inflation rate for $1, 1909 to 1910
Our calculations use the following inflation rate formula to calculate the change in value between 1909 and 1910:
CPI in 1910 CPI in 1909
×
1909 USD value
=
1910 USD value
Then plug in historical CPI values. The U.S. CPI was 9.1 in the year 1909 and 9.5 in 1910:
9.59.1
×
$1
=
$1.04
$1 in 1909 has the same "purchasing power" or "buying power" as $1.04 in 1910.
To get the total inflation rate for the 1 years between 1909 and 1910, we use the following formula:
CPI in 1910 - CPI in 1909CPI in 1909
×
100
=
Cumulative inflation rate (1 years)
Plugging in the values to this equation, we get:
9.5 - 9.19.1
×
100
=
4%
Comparison to S&P 500 Index
To help put this inflation into perspective, if we had invested $1 in the S&P 500 index in 1909, our investment would be nominally worth approximately $1.12 in 1910. This is a return on investment of 12.20%, with an absolute return of $0.12 on top of the original $1.
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 4.21% of returns ($0.05) during this period. This means the inflation-adjusted real return of our $1 investment is $0.07. You may also want to account for capital gains tax, which would take your real return down to around $0 for most people.
| Original Amount | Final Amount | Change | |
|---|---|---|---|
| Nominal | $1 | $1.12 | 12.20% |
| Real Inflation Adjusted | $1 | $1.07 | 7.47% |
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 1909 to latest available data for 1910 using average monthly close price.
For more details on the S&P 500 between 1909 and 1910, see the stock market returns calculator.
Data source & citation
Raw data for these calculations comes from the Bureau of Labor Statistics' Consumer Price Index (CPI), established in 1913. Price index data from 1774 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. Price index data from 1634 to 1773 is from the American Antiquarian Society, using British pound equivalents.
You may use the following MLA citation for this page: “Inflation Rate in 1910 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 9 Oct. 2024, https://www.officialdata.org/inflation-rate-in-1910.
Special thanks to QuickChart for their chart image API, which is used for chart downloads.
in2013dollars.com is a reference website maintained by the Official Data Foundation.
| Average inflation rate | 4.40% |
| Converted amount $1 base | $1.04 |
| Price difference $1 base | $0.04 |
| CPI in 1909 | 9.100 |
| CPI in 1910 | 9.500 |
| Inflation in 1909 | -1.09% |
| Inflation in 1910 | 4.40% |
| $1 in 1909 | $1.04 in 1910 |