What is $100 in 1918 worth in 1921?

$100 in 1918 has the purchasing power of about $119 in 1921, based on the Consumer Price Index (CPI-U).

What was the average inflation rate between 1918 and 1921?

Prices rose 18.5% in total between 1918 and 1921, an average of 5.83% per year.

How much is $1 in 1918 worth today?

$1 in 1918 is equivalent to about $1.19 in 1921. Equivalently, a 1921 dollar buys what $0.84 bought in 1918.

U.S. inflation · 1918–1921

Value of $100 in 1918, adjusted to 1921

Amount From year To year

$100 in 1918 has the same buying power as

$119

in 1921

Detailed inflation statistics
Cumulative price change	18.5%
Average inflation rate	5.83% per year
Converted amount ($100 base)	$119
Price difference ($100 base)	$18.54
CPI in 1918	15.1
CPI in 1921	17.9
Inflation in 1918	17.97%
Inflation in 1921	-10.50%
$100 in 1918 → 1921	$119
$100 in 1921 → 1918	$84.36

What happened to prices between 1918 and 1921

Between 1918 and 1921, the Consumer Price Index went from 15.1 to 17.9. Cumulatively, prices increased 18.5%, which works out to an average of 5.83% per year. Put differently, a dollar in 1918 bought what $0.84 buys in 1921.

Common amounts: 1918 dollars in 1921

Amount in 1918	Value in 1921
$1.00	$1.19
$5.00	$5.93
$10.00	$11.85
$20.00	$23.71
$50.00	$59.27
$100	$119
$500	$593
$1,000	$1,185
$5,000	$5,927
$10,000	$11,854
$100,000	$118,543
$1,000,000	$1,185,430

Inflation by spending category, 1918–1921

The headline number is an average. Individual categories moved very differently over this period. Here is what $100 of 1918 spending costs in 1921, by category:

Category	Avg. yearly inflation	$100 in 1918 →
All items (CPI-U)	5.83%	$119
Apparel	6.74%	$122
Food	-1.62%	$95.21

Not shown because the BLS began these indexes after 1918: core (all items less food & energy) (1957–), energy (1957–), housing (1967–), medical care (1935–), transportation (1935–), recreation (1993–), education & communication (1993–).

Year by year: CPI and the value of $100 from 1918

Year	CPI	Inflation rate	$100 from 1918
1918	15.1	18.0%	$100
1919	17.3	14.6%	$115
1920	20	15.6%	$132
1921	17.9	-10.5%	$119

Cite this page

MLA: “Inflation from 1918 to 1921: $100 is worth $119 today.” InflationCalculator.com, U.S. Bureau of Labor Statistics CPI-U data, https://inflationcalculator.com/inflation/1918-to-1921/

APA: InflationCalculator.com. Inflation from 1918 to 1921. Based on U.S. Bureau of Labor Statistics CPI-U data. Retrieved from https://inflationcalculator.com/inflation/1918-to-1921/

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.