CPI Inflation Calculator

See what an amount of money from one year is worth in another, using the US Consumer Price Index back to 1913. Enter a dollar figure, pick a start year and an end year, and get the equivalent value, the total inflation between them and the average rate per year.

Compare the value of money between two years using official US CPI data. Enter a dollar amount, a start year and an end year to see the equivalent value, the total inflation across the span and the average yearly rate. The table runs back to 1913.

Read the guide: What Is a Dollar From the Past Worth Today?

Value of money over time

Based on the US Consumer Price Index (CPI-U) annual average, 1913 to 2024.

$100 in 1990 is worth

$240

in 2024 money — the same buying power

Cumulative inflation
140.0%
Average per year
2.61%

Prices rose about 2.40× between 1990 and 2024. A basket of goods that cost $100 then would cost about $240 today.

Uses the CPI-U annual average, a nationwide measure of the typical basket of goods and services. Your own costs depend on where you live and what you buy. Figures are for context, not exact prices.

How it works

  1. 1

    Enter an amount

    Type the dollar figure you want to convert, such as a price, a wage or a savings balance.

  2. 2

    Pick the two years

    Choose the year the money is from and the year you want it expressed in. Any pair from 1913 onward works.

  3. 3

    Read the result

    See the equivalent amount, the cumulative inflation across the span and the average yearly rate.

Instant & 100% private — nothing is uploaded

Every calculation runs locally in your browser. The income, balances and goals you enter stay on your own device and are never sent to a server — nothing is stored, logged or shared.

Frequently asked questions

How much is $100 in 1990 worth today?
Using the CPI-U annual average, $100 in 1990 has the same buying power as about $240 in 2024, because prices rose roughly 2.4 times over those years. Enter your own amount and years above to get the exact figure.
What data does this use?
It uses the US Consumer Price Index for All Urban Consumers (CPI-U), annual average, published by the Bureau of Labor Statistics. The table runs from 1913 to the latest complete year. Annual averages are stable, unlike a single month.
How is the equivalent value worked out?
It is the amount times the ratio of the two years’ index values: amount × (end-year index ÷ start-year index). The same ratio, minus one, gives the cumulative inflation between the years.
Why might my own costs have risen more than this?
The CPI tracks a nationwide basket of goods and services. Categories like housing, healthcare and college have often climbed faster than the overall index, so a specific cost can outpace the headline figure.
Can I convert to an earlier year?
Yes. Set the end year before the start year and the tool shows what the money would have been worth back then, with a negative average rate to reflect that prices were lower.

Important

For information and planning only — not financial, tax or legal advice. These figures are estimates; rates, fees and rules vary, so confirm anything that affects a real decision with a qualified professional or the official source.

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