U.S. inflation · 1998–2021

Value of $100 in 1998, adjusted to 2021

$100 in 1998 has the same buying power as

$166

in 2021

$100$133$16619982004201020152021$100 · 1998$166 · 2021
Detailed inflation statistics
Cumulative price change66.2%
Average inflation rate2.23% per year
Converted amount ($100 base)$166
Price difference ($100 base)$66.24
CPI in 1998163
CPI in 2021270.97
Inflation in 19981.56%
Inflation in 20214.70%
$100 in 19982021$166
$100 in 20211998$60.15

What happened to prices between 1998 and 2021

Between 1998 and 2021, the Consumer Price Index went from 163 to 270.97. Cumulatively, prices increased 66.2%, which works out to an average of 2.23% per year. Put differently, a dollar in 1998 bought what $0.60 buys in 2021.

Common amounts: 1998 dollars in 2021

Amount in 1998Value in 2021
$1.00$1.66
$5.00$8.31
$10.00$16.62
$20.00$33.25
$50.00$83.12
$100$166
$500$831
$1,000$1,662
$5,000$8,312
$10,000$16,624
$100,000$166,239
$1,000,000$1,662,393

Inflation by spending category, 1998–2021

The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1998 spending costs in 2021, by category:

Category Avg. yearly inflation $100 in 1998 →
All items (CPI-U) 2.23% $166
Energy 3.72% $232
Medical care 3.43% $217
Housing 2.46% $175
Food 2.41% $173
Transportation 2.14% $163
Core (all items less food & energy) 2.06% $160
Education & communication 1.54% $142
Recreation 0.93% $124
Apparel -0.41% $90.97

Year by year: CPI and the value of $100 from 1998

Year CPI Inflation rate $100 from 1998
1998 163 1.6% $100
1999 166.6 2.2% $102
2000 172.2 3.4% $106
2001 177.1 2.8% $109
2002 179.9 1.6% $110
2003 184 2.3% $113
2004 188.9 2.7% $116
2005 195.3 3.4% $120
2006 201.6 3.2% $124
2007 207.342 2.8% $127
2008 215.303 3.8% $132
2009 214.537 -0.4% $132
2010 218.056 1.6% $134
2011 224.939 3.2% $138
2012 229.594 2.1% $141
2013 232.957 1.5% $143
2014 236.736 1.6% $145
2015 237.017 0.1% $145
2016 240.007 1.3% $147
2017 245.12 2.1% $150
2018 251.107 2.4% $154
2019 255.657 1.8% $157
2020 258.811 1.2% $159
2021 270.97 4.7% $166

The destination year: 2021

2021 was the year inflation stopped being background noise. Consumer prices rose 4.7% on average for the year, and the pace kept building as the months went on: by December, the 12-month rate had reached 7.0%, the highest since 1982. The proximate cause was a supply chain that could not keep up with a fast-reopening economy. A global semiconductor shortage choked new car production and pushed used vehicle prices up by more than a third, the single largest line item in the year’s inflation math. Lumber, appliances, and shipping capacity told versions of the same story: demand snapped back faster than factories, ports, and truckers could handle it. Washington added fuel in March with the $1.9 trillion American Rescue Plan, on top of the relief already in the pipeline since 2020. For most of the year, the Federal Reserve called the price surge “transitory,” a temporary reopening effect expected to fade on its own, and held its policy rate near zero. By November, with inflation still climbing, the Fed reversed course and began winding down its bond purchases, the first step toward the rate hikes that would follow in 2022. Gas averaged $3.01 a gallon for the year, up from about $2.17 in 2020, while the federal minimum wage held at $7.25, unchanged since 2009. In hindsight, 2021 reads as the hinge year: the point where “transitory” inflation became the multi-year fight the Fed spent the next two years trying to win.

More about inflation in 2021 →

Cite this page

MLA: “Inflation from 1998 to 2021: $100 is worth $166 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1998-to-2021/

APA: InflationCalculator.com. Inflation from 1998 to 2021. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1998-to-2021/

Source: U.S. Bureau of Labor Statistics, CPI-U annual averages (series CUUR0000SA0; category indexes listed on the data sources page). See how these numbers are calculated.