Nominal vs real dollars: what $100 from 1975 equals in 2024 dollars
A nominal dollar amount is the number of dollars as written at the time. A real amount adjusts for inflation so that money from different years can be compared. By the US Consumer Price Index, $100 in 1975 had the same buying power as $582.88 at 2024 average prices: prices rose 5.8x, or about 3.7% a year on average.
Your 1975 $100 Now Needs $583 Same Buying Power in 2024 Dollars
What $100 from past years equals in 2024 dollars
| Year | In 2024 dollars | Price factor | Average yearly inflation to 2024 |
|---|---|---|---|
| 1975 | $582.88 | 5.83x | 3.7% |
| 1980 | $380.65 | 3.81x | 3.1% |
| 1985 | $291.62 | 2.92x | 2.8% |
| 1990 | $240.08 | 2.40x | 2.6% |
| 1995 | $205.86 | 2.06x | 2.5% |
| 2000 | $182.17 | 1.82x | 2.5% |
| 2005 | $160.63 | 1.61x | 2.5% |
| 2010 | $143.86 | 1.44x | 2.6% |
| 2015 | $132.35 | 1.32x | 3.2% |
| 2020 | $121.20 | 1.21x | 4.9% |
Even recent amounts change: $100 in 2020 equals $121.20 at 2024 prices, 21% more.
How to convert nominal dollars to real dollars
- Real value = nominal value × (price index in the target year ÷ price index in the original year).
- The price factors in the table above are that ratio, with 2024 as the target year.
- Example: $100 from 1975 × 5.8288 = $582.88 in 2024 dollars.
For example, US interest expense on the debt was $414.0 billion in fiscal year 2010 in nominal dollars. Multiplying by the 2010-to-2024 factor of 1.44 gives roughly $595.5 billion in 2024 dollars. This is an approximation, because the fiscal year and the calendar-year price average do not cover exactly the same months.
What the Consumer Price Index measures
- CPI-U is the Consumer Price Index for All Urban Consumers, published by the US Bureau of Labor Statistics.
- It tracks the average change in prices paid by urban consumers for a fixed basket of goods and services, such as food, housing, transport and medical care.
- It is an average: the prices of individual items, and the cost of living for any one household, can rise faster or slower.
- The factors here use annual average prices, so they describe whole years, not a single month.
Questions
What is the difference between nominal and real dollars?
Nominal dollars are amounts as written at the time. Real dollars are adjusted for inflation so amounts from different years can be compared.
What is $100 from 1975 worth in 2024 dollars?
$582.88, based on the CPI-U annual averages for 1975 and 2024.
How do you adjust a dollar amount for inflation?
Multiply it by the price index of the target year divided by the price index of the original year.
What was average US inflation from 1975 to 2024?
About 3.7% a year, measured by CPI-U annual averages.
How we made this
Source: US Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers (CPI-U), annual averages (public domain). Not affiliated with or endorsed by the BLS. · Data: 2024 average pricesFor information only. Not financial advice. Every figure on this page is computed by script from the same data as our Shorts and rounded for display.